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i Introduction 
LINUX COMPLETE 
Command Reference 
Compiled by J. Purcell 
Red Hat Software, Inc. 
201 West 103rd Street 
Indianapolis, Indiana 46290 
For more information on the Linux operating system and 
Red Hat Software, Inc., check http://www.redhat.com.
COPYRIGHT © 1997 BY RED HAT SOFTWARE, INC. 
FIRST EDITION 
All rights reserved. No part of this book shall be reproduced, stored in a retrieval 
system, or transmitted by any means, electronic, mechanical, photocopying, 
recording, or otherwise, without written permission from the publisher. No 
patent liability is assumed with respect to the use of the information contained 
herein. Although every precaution has been taken in the preparation of this 
book, the publisher and author assume no responsibility for errors or omissions. 
Neither is any liability assumed for damages resulting from the use of the 
information contained herein. For information, address Sams Publishing, 201 
W. 103rd St., Indianapolis, IN 46290. 
International Standard Book Number: 0-672-31104-6 
Library of Congress Catalog Card Number: 97-66202 
2000 99 98 97 4 3 2 1 
Interpretation of the printing code: the rightmost double-digit number is the 
year of the book’s printing; the rightmost single-digit, the number of the book’s 
printing. For example, a printing code of 97-1 shows that the first printing of the 
book occurred in 1997. 
Composed in AGaramond and MCPdigital by Macmillan Computer Publishing 
Printed in the United States of America 
TRADEMARKS 
All terms mentioned in this book that are known to be trademarks or service 
marks have been appropriately capitalized. Sams Publishing cannot attest to the 
accuracy of this information. Use of a term in this book should not be regarded 
as affecting the validity of any trademark or service mark. 
President Richard K. Swadley 
Publisher and Director of Acquisitions Jordan Gold 
Director of Product Development Dean Miller 
Managing Editor Kitty Wilson Jarrett 
Indexing Manager Johnna L. VanHoose 
Director of Marketing Kelli S. Spencer 
Associate Product Marketing Manager Jennifer Pock 
Marketing Coordinator Linda Beckwith 
Acquisitions Editor 
Grace M. Buechlein 
Development Editor 
Brian Proffitt 
Software Development Specialist 
Jack Belbot 
Production Editor 
Kitty Wilson Jarrett 
Kate Shoup Welsh 
Copy Editors 
Kimberly K. Hannel 
Carolyn Linn 
Kristine Simmons 
Indexer 
Christine L. Nelsen 
Technical Reviewer 
Bill Ball 
Editorial Coordinators 
Mandie Rowell 
Katie Wise 
Technical Edit Coordinator 
Lynette Quinn 
Editorial Assistants 
Carol Ackerman 
Andi Richter 
Rhonda Tinch-Mize 
Karen Williams 
Cover Designer 
Karen Ruggles 
Book Designer 
Ann Jones 
Copy Writer 
David Reichwein 
Production Team Supervisor 
Beth Lewis 
Production Team 
Erin Danielson, Bryan Flores, 
DiMonique Ford, Julie Geeting, 
Kay Hoskin, Christy M. Lemasters, 
Tony McDonald, Darlena Murray, 
Julie Searls, Sossity Smith
Overview 
Part I 
User Commands 2 
Part II 
System Calls 738 
Part III 
Library Functions 892 
Part IV 
Special Files 1064 
Part V 
File Formats 1104 
Part VI 
Games 1210 
Part VII 
Miscellaneous 1214 
Part VIII 
Administration and Privileged Commands 1258 
Part IX 
Kernel Reference Guide 1424 
Index
Linux Complete Command Reference iv 
Part I User Commands 
Introduction ......................................................................................................... 2 
addftinfo ............................................................................................................... 2 
afmtodit ................................................................................................................ 2 
ansi2knr ................................................................................................................ 4 
anytopnm ............................................................................................................. 4 
appres ................................................................................................................... 5 
ar .......................................................................................................................... 5 
arch ....................................................................................................................... 8 
GNU as ................................................................................................................ 8 
asciitopgm ........................................................................................................... 10 
atktopbm ............................................................................................................ 10 
bash .................................................................................................................... 11 
bdftopcf .............................................................................................................. 47 
beforelight ........................................................................................................... 47 
biff ...................................................................................................................... 48 
bioradtopgm ....................................................................................................... 48 
bitmap, bmtoa, atobm ........................................................................................ 49 
bmptoppm .......................................................................................................... 57 
brushtopbm ........................................................................................................ 57 
cal ....................................................................................................................... 58 
cat ....................................................................................................................... 58 
chattr .................................................................................................................. 59 
chfn .................................................................................................................... 60 
chgrp................................................................................................................... 61 
chkdupexe ........................................................................................................... 61 
chmod................................................................................................................. 61 
chown ................................................................................................................. 62 
chsh .................................................................................................................... 63 
ci ......................................................................................................................... 64 
cidentd ................................................................................................................ 69 
cksum ................................................................................................................. 70 
clear .................................................................................................................... 70 
cmuwmtopbm .................................................................................................... 71 
co ........................................................................................................................ 71 
col ....................................................................................................................... 76 
colcrt ................................................................................................................... 77 
colrm .................................................................................................................. 77 
column................................................................................................................ 78 
comm.................................................................................................................. 78
v Introduction 
convdate.............................................................................................................. 79 
cp ........................................................................................................................ 80 
cccp, cpp ............................................................................................................. 81 
crontab................................................................................................................ 84 
csplit ................................................................................................................... 85 
ctags .................................................................................................................... 87 
cu ........................................................................................................................ 88 
cut ...................................................................................................................... 90 
cvs ....................................................................................................................... 91 
date ................................................................................................................... 106 
dd ..................................................................................................................... 108 
depmod, modprobe ........................................................................................... 109 
df ...................................................................................................................... 112 
dig .................................................................................................................... 113 
dnsquery ........................................................................................................... 117 
domainname ..................................................................................................... 119 
dsplit ................................................................................................................. 119 
du ..................................................................................................................... 120 
editres ............................................................................................................... 121 
elvis, ex, vi, view, input ..................................................................................... 126 
elvprsv ............................................................................................................... 128 
elvrec ................................................................................................................. 129 
emacs ................................................................................................................ 130 
emacstool .......................................................................................................... 134 
etags .................................................................................................................. 135 
expand .............................................................................................................. 137 
find ................................................................................................................... 137 
fitstopnm .......................................................................................................... 142 
fmt .................................................................................................................... 143 
fold ................................................................................................................... 143 
free .................................................................................................................... 144 
fsinfo ................................................................................................................. 145 
fslsfonts ............................................................................................................. 145 
fstobdf ............................................................................................................... 146 
fstopgm ............................................................................................................. 147 
ftp ..................................................................................................................... 147 
fuser .................................................................................................................. 154 
g++.................................................................................................................... 155 
g3topbm ........................................................................................................... 160 
gawk ................................................................................................................. 161
Linux Complete Command Reference vi 
gcal ................................................................................................................... 173 
gcc, g++ ............................................................................................................. 174 
gemtopbm ........................................................................................................ 201 
geqn .................................................................................................................. 202 
getlist ................................................................................................................ 206 
getopt ................................................................................................................ 207 
giftopnm ........................................................................................................... 208 
gindxbib ............................................................................................................ 209 
glookbib ............................................................................................................ 210 
gnroff ................................................................................................................ 210 
gouldtoppm ...................................................................................................... 211 
gpic ................................................................................................................... 211 
gprof ................................................................................................................. 216 
grefer ................................................................................................................. 217 
grep, egrep, fgrep .............................................................................................. 224 
grephistory ........................................................................................................ 226 
grodvi ............................................................................................................... 227 
groff .................................................................................................................. 228 
grog .................................................................................................................. 230 
grops ................................................................................................................. 230 
grotty ................................................................................................................ 235 
gsoelim .............................................................................................................. 236 
gtbl ................................................................................................................... 236 
gtroff ................................................................................................................. 237 
gzip, gunzip, zcatgzip, gunzip, zcat .................................................................... 248 
gzexe ................................................................................................................. 252 
head .................................................................................................................. 253 
hexdump ........................................................................................................... 254 
hipstopgm ......................................................................................................... 256 
host ................................................................................................................... 257 
hostid ................................................................................................................ 258 
hostname .......................................................................................................... 259 
hpcdtoppm v0.3 ................................................................................................ 260 
httpd ................................................................................................................. 261 
icontopbm ........................................................................................................ 262 
ident ................................................................................................................. 262 
ilbmtoppm ........................................................................................................ 263 
imake ................................................................................................................ 264 
imgtoppm ......................................................................................................... 267 
inews ................................................................................................................. 267 
info ................................................................................................................... 269 
innconfval ......................................................................................................... 270 
insmod .............................................................................................................. 271 
install ................................................................................................................ 272 
installit .............................................................................................................. 273
vii Introduction 
ispell, buildhash, munchlist, findaffix, tryaffix, icombine, ijoin ......................... 274 
join ................................................................................................................... 282 
kill .................................................................................................................... 283 
killall ................................................................................................................. 284 
ksyms ................................................................................................................ 284 
last .................................................................................................................... 285 
lbxproxy ............................................................................................................ 286 
ld ...................................................................................................................... 287 
lispmtopgm ....................................................................................................... 292 
lkbib ................................................................................................................. 292 
ln ...................................................................................................................... 293 
lndir .................................................................................................................. 294 
locate ................................................................................................................ 295 
logger ................................................................................................................ 295 
login .................................................................................................................. 296 
look ................................................................................................................... 297 
lpq .................................................................................................................... 298 
lpr ..................................................................................................................... 299 
lprm .................................................................................................................. 301 
lptest ................................................................................................................. 302 
ls, dir, vdir ......................................................................................................... 303 
lsattr .................................................................................................................. 304 
lsmod ................................................................................................................ 305 
lynx ................................................................................................................... 306 
macptopbm ....................................................................................................... 309 
make ................................................................................................................. 310 
makedepend ...................................................................................................... 312 
makestrs ............................................................................................................ 314 
mattrib .............................................................................................................. 315 
mbadblocks ....................................................................................................... 316 
mcd................................................................................................................... 316 
mcookie ............................................................................................................ 317 
mcopy ............................................................................................................... 317 
md5sum ............................................................................................................ 318 
mdel .................................................................................................................. 318 
mdeltree ............................................................................................................ 319 
mdir .................................................................................................................. 319 
merge ................................................................................................................ 320 
mesg.................................................................................................................. 321 
mformat ............................................................................................................ 321 
mgrtopbm ......................................................................................................... 322 
mkdir ................................................................................................................ 323 
mkdirhier .......................................................................................................... 323 
mkfifo ............................................................................................................... 323 
mkmanifest ....................................................................................................... 324
Linux Complete Command Reference viii 
mknod .............................................................................................................. 325 
mlabel ............................................................................................................... 325 
mmd ................................................................................................................. 326 
mmount ............................................................................................................ 326 
mmove .............................................................................................................. 327 
more ................................................................................................................. 327 
mrd ................................................................................................................... 329 
mread ................................................................................................................ 329 
mren ................................................................................................................. 329 
mtest ................................................................................................................. 330 
mtools ............................................................................................................... 330 
mtvtoppm ......................................................................................................... 333 
mtype................................................................................................................ 333 
mv .................................................................................................................... 334 
mwrite .............................................................................................................. 335 
namei ................................................................................................................ 335 
newaliases .......................................................................................................... 336 
newgrp .............................................................................................................. 336 
nl ...................................................................................................................... 337 
nlmconv ............................................................................................................ 338 
nm .................................................................................................................... 339 
nntpget ............................................................................................................. 340 
objcopy ............................................................................................................. 341 
objdump ........................................................................................................... 342 
oclock ............................................................................................................... 344 
od ..................................................................................................................... 345 
passwd .............................................................................................................. 346 
paste .................................................................................................................. 347 
pbmclean .......................................................................................................... 348 
pbmfilters .......................................................................................................... 348 
pbmlife ............................................................................................................. 352 
pbmmake .......................................................................................................... 353 
pbmmask .......................................................................................................... 353 
pbmpscale ......................................................................................................... 354 
pbmreduce ........................................................................................................ 355 
pbmtext ............................................................................................................ 355 
pbmto10x ......................................................................................................... 356 
pbmto4425 ....................................................................................................... 357 
pbmtoascii ........................................................................................................ 357 
pbmtoatk .......................................................................................................... 358 
pbmtobg ........................................................................................................... 358 
pbmtocmuwm .................................................................................................. 358 
pbmtoepsi ......................................................................................................... 359 
pbmtoepson ...................................................................................................... 359 
pbmtog3 ........................................................................................................... 360
ix Introduction 
pbmtogem ........................................................................................................ 360 
pbmtogo ........................................................................................................... 360 
pbmtoicon ........................................................................................................ 361 
pbmtolj ............................................................................................................. 361 
pbmtoln03 ........................................................................................................ 362 
pbmtolps ........................................................................................................... 362 
pbmtomacp ....................................................................................................... 363 
pbmtomgr ......................................................................................................... 363 
pbmtopgm ........................................................................................................ 364 
pbmtopi3 .......................................................................................................... 364 
pbmtopk ........................................................................................................... 364 
pbmtoplot ......................................................................................................... 365 
pbmtoptx .......................................................................................................... 366 
pbmtox10bm .................................................................................................... 366 
pbmtoxbm ........................................................................................................ 367 
pgmtoybm ........................................................................................................ 367 
pbmtozinc ......................................................................................................... 367 
pbmupc ............................................................................................................ 368 
pcxtoppm .......................................................................................................... 368 
pfbtops .............................................................................................................. 369 
pgmbentley ....................................................................................................... 369 
pgmcrater .......................................................................................................... 370 
pgmedge ........................................................................................................... 371 
pgmenhance ...................................................................................................... 371 
pgmhist ............................................................................................................. 372 
pgmkernel ......................................................................................................... 372 
pgmnoise .......................................................................................................... 373 
pgmnorm .......................................................................................................... 373 
pgmoil .............................................................................................................. 374 
pgmramp .......................................................................................................... 374 
pgmtexture ........................................................................................................ 375 
pgmtofs ............................................................................................................. 376 
pgmtolispm ....................................................................................................... 376 
pgmtopbm ........................................................................................................ 377 
pgmtoppm ........................................................................................................ 378 
pi1toppm .......................................................................................................... 378 
pi3topbm .......................................................................................................... 379 
picttoppm ......................................................................................................... 379 
pjtoppm ............................................................................................................ 381 
pktopbm ........................................................................................................... 381 
pnmalias ............................................................................................................ 381 
pnmarith ........................................................................................................... 382 
pnmcat .............................................................................................................. 383 
pnmcomp ......................................................................................................... 383 
pnmconvol ........................................................................................................ 384
Linux Complete Command Reference x 
pnmcrop ........................................................................................................... 385 
pnmcut ............................................................................................................. 385 
pnmdepth ......................................................................................................... 385 
pnmenlarge ....................................................................................................... 386 
pnmfile ............................................................................................................. 386 
pnmflip ............................................................................................................. 387 
pnmgamma ....................................................................................................... 387 
pnmhistmap ...................................................................................................... 388 
pnmindex .......................................................................................................... 388 
pnminvert ......................................................................................................... 389 
pnmmargin ....................................................................................................... 389 
pnmnlfilt ........................................................................................................... 390 
pnmnoraw ........................................................................................................ 391 
pnmpad ............................................................................................................ 392 
pnmpaste .......................................................................................................... 392 
pnmrotate ......................................................................................................... 393 
pnmscale ........................................................................................................... 393 
pnmshear .......................................................................................................... 394 
pnmsmooth ...................................................................................................... 395 
pnmtile ............................................................................................................. 395 
pnmtoddif ......................................................................................................... 396 
pnmtofits .......................................................................................................... 396 
pnmtops............................................................................................................ 397 
pnmtorast ......................................................................................................... 398 
pnmtosgi ........................................................................................................... 398 
pnmtosir ........................................................................................................... 399 
pnmtotiff .......................................................................................................... 399 
pnmtoxwd ........................................................................................................ 400 
ppm3d .............................................................................................................. 400 
ppmbrighten ..................................................................................................... 401 
ppmchange ....................................................................................................... 401 
ppmdim ............................................................................................................ 402 
ppmdist............................................................................................................. 402 
ppmdither ......................................................................................................... 403 
ppmflash ........................................................................................................... 404 
ppmforge .......................................................................................................... 404 
ppmhist............................................................................................................. 408 
ppmmake .......................................................................................................... 408 
ppmmix ............................................................................................................ 408 
ppmnorm.......................................................................................................... 409 
ppmntsc ............................................................................................................ 409 
ppmpat ............................................................................................................. 410 
ppmquant ......................................................................................................... 411 
ppmquantall...................................................................................................... 412 
ppmqvga ........................................................................................................... 412
xi Introduction 
ppmrelief .......................................................................................................... 413 
ppmshift ........................................................................................................... 413 
ppmspread ........................................................................................................ 414 
ppmtoacad ........................................................................................................ 414 
ppmtobmp ........................................................................................................ 416 
ppmtogif ........................................................................................................... 416 
ppmtoicr ........................................................................................................... 417 
ppmtoilbm ........................................................................................................ 418 
ppmtomap ........................................................................................................ 419 
ppmtomitsu ...................................................................................................... 420 
ppmtopcx .......................................................................................................... 421 
ppmtopgm ........................................................................................................ 421 
ppmtopi1 .......................................................................................................... 422 
ppmtopict ......................................................................................................... 422 
ppmtopj ............................................................................................................ 423 
ppmtopjxl ......................................................................................................... 424 
ppmtopuzz ........................................................................................................ 424 
ppmtorgb3 ........................................................................................................ 425 
ppmtosixel ........................................................................................................ 425 
ppmtotga .......................................................................................................... 426 
ppmtouil ........................................................................................................... 427 
ppmtoxpm ........................................................................................................ 427 
ppmtoyuv ......................................................................................................... 428 
ppmtoyuvsplit ................................................................................................... 428 
pr ...................................................................................................................... 429 
ps ...................................................................................................................... 430 
psbb .................................................................................................................. 433 
psidtopgm ......................................................................................................... 433 
pstopnm............................................................................................................ 434 
pstree ................................................................................................................ 435 
psupdate ........................................................................................................... 436 
qrttoppm .......................................................................................................... 436 
quota ................................................................................................................. 437 
ranlib ................................................................................................................ 437 
rasttopnm ......................................................................................................... 438 
rawtopgm .......................................................................................................... 439 
rawtoppm ......................................................................................................... 439 
rcp .................................................................................................................... 440 
rcs ..................................................................................................................... 441 
rcsclean ............................................................................................................. 443 
rcsdiff ................................................................................................................ 445 
rcsfreeze ............................................................................................................ 446 
rcsintro ............................................................................................................. 447 
rcsmerge ............................................................................................................ 449 
rdist .................................................................................................................. 451
Linux Complete Command Reference xii 
reconfig ............................................................................................................. 454 
ref ..................................................................................................................... 455 
reset .................................................................................................................. 456 
resize ................................................................................................................. 456 
rev ..................................................................................................................... 457 
rgb3toppm ........................................................................................................ 457 
rlog ................................................................................................................... 458 
rlogin ................................................................................................................ 460 
rm ..................................................................................................................... 461 
rmdir ................................................................................................................ 462 
rmmod .............................................................................................................. 462 
rnews ................................................................................................................ 463 
rpcgen ............................................................................................................... 464 
rsh ..................................................................................................................... 466 
rstart ................................................................................................................. 467 
rstartd ............................................................................................................... 468 
rup .................................................................................................................... 472 
rusers ................................................................................................................ 472 
rwall .................................................................................................................. 473 
rwho ................................................................................................................. 474 
script ................................................................................................................. 474 
sed .................................................................................................................... 475 
sessreg ............................................................................................................... 480 
setterm .............................................................................................................. 482 
sgitopnm ........................................................................................................... 483 
shar ................................................................................................................... 484 
shlock................................................................................................................ 487 
showrgb ............................................................................................................ 488 
shrinkfile ........................................................................................................... 488 
sirtopnm ........................................................................................................... 488 
size .................................................................................................................... 489 
sldtoppm ........................................................................................................... 490 
smproxy ............................................................................................................ 491 
sort .................................................................................................................... 492 
spctoppm .......................................................................................................... 494 
split ................................................................................................................... 494 
spottopgm ......................................................................................................... 495 
sputoppm .......................................................................................................... 495 
sq ...................................................................................................................... 496 
startx ................................................................................................................. 496 
strings ............................................................................................................... 498 
strip .................................................................................................................. 499 
subst ................................................................................................................. 500 
sum ................................................................................................................... 501 
SuperProbe ....................................................................................................... 501
xiii Introduction 
tac ..................................................................................................................... 503 
tail .................................................................................................................... 504 
talk .................................................................................................................... 505 
tcal .................................................................................................................... 506 
telnet ................................................................................................................. 507 
tfmtodit ............................................................................................................ 513 
tftp .................................................................................................................... 514 
tgatoppm .......................................................................................................... 515 
tifftopnm .......................................................................................................... 515 
tin, rtin, cdtin, tind ........................................................................................... 516 
tload .................................................................................................................. 533 
top .................................................................................................................... 533 
touch ................................................................................................................ 536 
tr ....................................................................................................................... 536 
tset, reset ........................................................................................................... 539 
tsort .................................................................................................................. 542 
twm .................................................................................................................. 542 
txt2gcal ............................................................................................................. 558 
ul ...................................................................................................................... 558 
unexpand .......................................................................................................... 559 
uniq .................................................................................................................. 560 
unshar ............................................................................................................... 560 
updatedb ........................................................................................................... 561 
uptime .............................................................................................................. 562 
userlist ............................................................................................................... 563 
uucp .................................................................................................................. 563 
uuencode .......................................................................................................... 565 
uustat ................................................................................................................ 566 
uux.................................................................................................................... 569 
uuxqt ................................................................................................................ 572 
w....................................................................................................................... 573 
wall ................................................................................................................... 574 
wc ..................................................................................................................... 574 
whereis .............................................................................................................. 575 
write .................................................................................................................. 576 
x11perf.............................................................................................................. 577 
x11perfcomp ..................................................................................................... 585 
xargs .................................................................................................................. 586 
xauth ................................................................................................................. 587 
xbmtopbm ........................................................................................................ 592 
xcmsdb.............................................................................................................. 592 
xclock ................................................................................................................ 593 
xclipboard ......................................................................................................... 595 
xconsole ............................................................................................................ 597 
xcutsel ............................................................................................................... 598
Linux Complete Command Reference xiv 
xdm .................................................................................................................. 599 
xdpyinfo ............................................................................................................ 614 
Xf86_Accel ....................................................................................................... 614 
XF86_Mono ..................................................................................................... 624 
XF86_SVGA .................................................................................................... 627 
XF86_VGA16 .................................................................................................. 631 
xf86config ......................................................................................................... 633 
xfd .................................................................................................................... 633 
XFree86 ............................................................................................................ 636 
xfs ..................................................................................................................... 641 
xhost ................................................................................................................. 643 
xieperf ............................................................................................................... 645 
ximtoppm ......................................................................................................... 654 
xinetd ................................................................................................................ 655 
xinit .................................................................................................................. 664 
xkill ................................................................................................................... 666 
xlogo ................................................................................................................. 667 
xlsatoms ............................................................................................................ 668 
xlsclients ............................................................................................................ 669 
xlsfonts .............................................................................................................. 670 
xmag ................................................................................................................. 671 
xmkmf .............................................................................................................. 672 
xmodmap .......................................................................................................... 672 
xon .................................................................................................................... 676 
xpmtoppm ........................................................................................................ 677 
xprop ................................................................................................................ 677 
xrdb .................................................................................................................. 681 
xrefresh ............................................................................................................. 684 
Xserver .............................................................................................................. 685 
xset .................................................................................................................... 690 
xsetroot ............................................................................................................. 693 
xsm ................................................................................................................... 694 
xsmclient ........................................................................................................... 698 
xstdcmap ........................................................................................................... 699 
xterm ................................................................................................................ 700 
Xvfb .................................................................................................................. 717 
xvidtune ............................................................................................................ 719 
xvminitoppm .................................................................................................... 720 
xwd ................................................................................................................... 721 
xwdtopnm ........................................................................................................ 722 
xwininfo ............................................................................................................ 722 
xwud ................................................................................................................. 725 
ybmtopbm ........................................................................................................ 726 
ytalk .................................................................................................................. 727 
yuvplittoppm .................................................................................................... 730
xv Introduction 
yuvtoppm ......................................................................................................... 731 
zcmp, zdiff ........................................................................................................ 731 
zeisstopnm ........................................................................................................ 732 
zforce ................................................................................................................ 732 
zgrep ................................................................................................................. 733 
zmore ................................................................................................................ 733 
znew.................................................................................................................. 734 
Part II System Calls 
intro .................................................................................................................. 738 
exit .................................................................................................................... 739 
accept ................................................................................................................ 740 
access ................................................................................................................ 741 
acct ................................................................................................................... 742 
adjtimex ............................................................................................................ 742 
alarm ................................................................................................................. 744 
bdflush .............................................................................................................. 744 
bind .................................................................................................................. 745 
brk, sbrk ............................................................................................................ 746 
cacheflush ......................................................................................................... 746 
chdir, fchdir ...................................................................................................... 747 
chmod, fchmod ................................................................................................. 748 
chown, fchown ................................................................................................. 749 
chroot ............................................................................................................... 750 
clone ................................................................................................................. 751 
close .................................................................................................................. 752 
connect ............................................................................................................. 752 
dup, dup2 ......................................................................................................... 753 
execve ................................................................................................................ 754 
fcntl .................................................................................................................. 755 
fdatasync ........................................................................................................... 756 
flock .................................................................................................................. 757 
fork, vfork ......................................................................................................... 758 
fsync ................................................................................................................. 758 
getdents ............................................................................................................ 759 
getdomainname, setdomainname ...................................................................... 760 
getdtablesize ...................................................................................................... 760 
getgid, getegid ................................................................................................... 761 
getgroups, setgroups .......................................................................................... 761 
gethostid, sethostid ........................................................................................... 762 
gethostname, sethostname ................................................................................. 763 
getitimer, setitimer ............................................................................................ 763 
getpagesize ........................................................................................................ 765 
getpeername ...................................................................................................... 765 
getpid, getppid .................................................................................................. 766 
getpriority, setpriority ....................................................................................... 766
Linux Complete Command Reference xvi 
getrlimit, getrusage, setrlimit ............................................................................. 767 
getsid ................................................................................................................ 768 
getsockname...................................................................................................... 769 
getsockopt, setsockopt ....................................................................................... 769 
gettimeofday, settimeofday ................................................................................ 772 
getuid, geteuid .................................................................................................. 773 
idle .................................................................................................................... 774 
ioctl ................................................................................................................... 774 
ioperm .............................................................................................................. 788 
iopl ................................................................................................................... 788 
ipc ..................................................................................................................... 789 
kill .................................................................................................................... 790 
killpg ................................................................................................................. 790 
link ................................................................................................................... 791 
listen ................................................................................................................. 792 
llseek ................................................................................................................. 793 
lseek .................................................................................................................. 793 
mkdir ................................................................................................................ 794 
mknod .............................................................................................................. 795 
mlock ................................................................................................................ 796 
mlockall ............................................................................................................ 797 
mmap, munmap ............................................................................................... 799 
modify_ldt ........................................................................................................ 800 
get_kernel_syms, create_module, init_module, delete_module ......................... 800 
mount, umount ................................................................................................ 802 
mprotect ........................................................................................................... 804 
mremap ............................................................................................................ 805 
msgctl ............................................................................................................... 806 
msgget............................................................................................................... 807 
msgop ............................................................................................................... 808 
msync ............................................................................................................... 811 
munlock ............................................................................................................ 811 
munlockall ........................................................................................................ 812 
nanosleep .......................................................................................................... 813 
nice ................................................................................................................... 814 
oldfstat, oldlstat, oldstat, oldolduname, olduname ............................................ 814 
open, creat ........................................................................................................ 815 
outb, outw, outl, outsb, outsw, outsl ................................................................. 816 
pause ................................................................................................................. 817 
personality ........................................................................................................ 817 
phys .................................................................................................................. 818 
pipe ................................................................................................................... 818 
profil ................................................................................................................. 819 
ptrace ................................................................................................................ 820 
quotactl ............................................................................................................. 821
xvii Introduction 
read ................................................................................................................... 822 
readdir .............................................................................................................. 823 
readlink ............................................................................................................. 823 
readv, writev ...................................................................................................... 824 
reboot ............................................................................................................... 825 
recv, recvfrom, recvmsg ..................................................................................... 826 
rename .............................................................................................................. 828 
rmdir ................................................................................................................ 829 
sched_get_priority_max, sched_get_priority_min ............................................. 830 
sched_rr_get_interval ........................................................................................ 831 
sched_setparam, sched_getparam ...................................................................... 832 
sched_setscheduler, sched_getscheduler ............................................................ 833 
sched_yield ....................................................................................................... 835 
select, FD_CLR, FD_ISSET, FD_SET, FD_ZERO......................................... 835 
semctl ................................................................................................................ 837 
semget ............................................................................................................... 839 
semop ............................................................................................................... 840 
send, sendto, sendmsg ....................................................................................... 842 
setfsgid .............................................................................................................. 843 
setfsuid .............................................................................................................. 844 
setgid ................................................................................................................ 845 
setpgid, getpgid, setpgrp, getpgrp ...................................................................... 845 
setregid, setegid ................................................................................................. 846 
setreuid, seteuid ................................................................................................ 847 
setsid ................................................................................................................. 848 
setuid ................................................................................................................ 848 
setup ................................................................................................................. 849 
shmctl ............................................................................................................... 849 
shmget .............................................................................................................. 851 
shmop ............................................................................................................... 853 
shutdown .......................................................................................................... 855 
sigaction, sigprocmask, sigpending, sigsuspend .................................................. 855 
signal ................................................................................................................. 857 
sigblock, siggetmask, sigsetmask, sigmask .......................................................... 858 
sigpause ............................................................................................................. 858 
sigreturn ............................................................................................................ 859 
sigvec ................................................................................................................ 860 
socket ................................................................................................................ 860 
socketcall ........................................................................................................... 862 
socketpair .......................................................................................................... 862 
stat, fstat, lstat ................................................................................................... 863 
statfs, fstatfs ....................................................................................................... 865 
stime ................................................................................................................. 866 
swapon, swapoff ................................................................................................ 866 
symlink ............................................................................................................. 867
Linux Complete Command Reference xviii 
sync ................................................................................................................... 869 
sysctl ................................................................................................................. 869 
sysfs ................................................................................................................... 871 
sysinfo ............................................................................................................... 871 
syslog ................................................................................................................ 872 
termios, tcgetattr, tcsetattr, tcsendbreak, tcdrain, tcflush, tcflow, cfgetospeed, 
cfgetispeed, cfsetispeed, cfsetospeed, tcgetpgrp, tcsetpgrp ............................... 874 
time .................................................................................................................. 878 
times ................................................................................................................. 878 
truncate, ftruncate ............................................................................................. 879 
umask ............................................................................................................... 880 
uname ............................................................................................................... 880 
none.................................................................................................................. 881 
afs_syscall, break, gtty, lock, mpx, prof, quotactl, stty, ustat .............................. 881 
unlink ............................................................................................................... 882 
uselib ................................................................................................................ 883 
ustat .................................................................................................................. 883 
utime, utimes .................................................................................................... 884 
vhangup ............................................................................................................ 885 
vm86 ................................................................................................................ 885 
wait, waitpid ..................................................................................................... 886 
wait3, wait4 ...................................................................................................... 888 
write.................................................................................................................. 889 
Part III Library Functions 
Intro ................................................................................................................. 892 
abort ................................................................................................................. 892 
abs .................................................................................................................... 892 
acos ................................................................................................................... 893 
acosh ................................................................................................................. 893 
alloca ................................................................................................................. 894 
asin ................................................................................................................... 894 
asinh ................................................................................................................. 895 
assert ................................................................................................................. 895 
atan ................................................................................................................... 896 
atan2 ................................................................................................................. 896 
atanh ................................................................................................................. 897 
atexit ................................................................................................................. 897 
atof ................................................................................................................... 898 
atoi .................................................................................................................... 898 
atol .................................................................................................................... 899 
bcmp................................................................................................................. 899 
bcopy ................................................................................................................ 900 
bsearch .............................................................................................................. 900 
bcmp, bcopy, bzero, memccpy, memchr, memcmp, memcpy, memfrob, memmem, 
memmove, memset......................................................................................... 901
xix Introduction 
htonl, htons, ntohl, ntohs ................................................................................. 901 
bzero ................................................................................................................. 902 
catgets ............................................................................................................... 902 
catopen, catclose ............................................................................................... 903 
ceil .................................................................................................................... 904 
clientlib ............................................................................................................. 904 
clock ................................................................................................................. 905 
closedir .............................................................................................................. 905 
confstr ............................................................................................................... 906 
copysign ............................................................................................................ 907 
cos .................................................................................................................... 907 
cosh .................................................................................................................. 908 
crypt ................................................................................................................. 908 
ctermid ............................................................................................................. 909 
asctime, ctime, gmtime, localtime, mktime ....................................................... 909 
difftime ............................................................................................................. 911 
div ..................................................................................................................... 911 
drand48, erand48, lrand48, nrand48, mrand48, jrand48, srand48, 
seed48, lcong48 .............................................................................................. 912 
drem ................................................................................................................. 913 
ecvt, fcvt ........................................................................................................... 913 
erf, erfc .............................................................................................................. 914 
execl, execlp, execle, exect, execv, execvp ........................................................... 914 
errno ................................................................................................................. 916 
exit .................................................................................................................... 917 
exp, log, log10, pow .......................................................................................... 917 
expm1, log1p .................................................................................................... 918 
fabs ................................................................................................................... 919 
fclose ................................................................................................................. 919 
clearerr, feof, ferror, fileno ................................................................................. 919 
fflush, fpurge ..................................................................................................... 920 
ffs ...................................................................................................................... 921 
fgetgrent ............................................................................................................ 921 
fgetpwent .......................................................................................................... 922 
floor .................................................................................................................. 923 
fmod ................................................................................................................. 923 
fnmatch ............................................................................................................ 924 
fopen, fdopen, freopen ...................................................................................... 924 
fpathconf, pathconf ........................................................................................... 925 
fread, fwrite ....................................................................................................... 926 
frexp .................................................................................................................. 927 
fgetpos, fseek, fsetpos, ftell, rewind .................................................................... 927 
ftime ................................................................................................................. 928 
ftok ................................................................................................................... 929 
ftw .................................................................................................................... 930
Linux Complete Command Reference xx 
gcvt ................................................................................................................... 930 
getcwd, get_current_dir_name, getwd ............................................................... 931 
getdirentries ...................................................................................................... 931 
getenv ............................................................................................................... 932 
getgrent, setgrent, endgrent ............................................................................... 932 
getgrnam, getgrgid ............................................................................................ 933 
getlogin, cuserid ................................................................................................ 934 
getmntent, setmntent, addmntent, endmntent, hasmntopt ............................... 935 
getnetent, getnetbyaddr, getnetbyname, setnetent, endnetent ........................... 936 
getopt ................................................................................................................ 937 
getpass ............................................................................................................... 940 
getprotoent, getprotobyname, getprotobynumber, setprotoent, endprotoent .... 941 
getpw ................................................................................................................ 942 
getpwent, setpwent, endpwent .......................................................................... 943 
getpwnam, getpwuid ......................................................................................... 944 
fgetc, fgets, getc, getchar, gets, ungetc ............................................................... 944 
getservent, getservbyname, getservbyport, setservent, endservent ....................... 945 
getusershell, setusershell, endusershell ............................................................... 946 
getutent, getutid, getutline, pututline, setutent, endutent, utmpname ............... 947 
getw, putw ........................................................................................................ 948 
glob, globfree .................................................................................................... 949 
hosts_access, hosts_ctl ....................................................................................... 950 
hcreate, hdestroy, hsearch .................................................................................. 951 
hypot ................................................................................................................ 953 
index, rindex ..................................................................................................... 953 
inet_aton, inet_addr, inet_network, inet_ntoa, inet_makeaddr, inet_lnaof, 
inet_netof ....................................................................................................... 953 
infnan ............................................................................................................... 954 
initgroups .......................................................................................................... 955 
inndcomm ........................................................................................................ 956 
insque, remque .................................................................................................. 957 
isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, islower, isprint, 
ispunct, isspace, isupper, isxdigit ..................................................................... 957 
isatty ................................................................................................................. 958 
isinf, isnan, finite .............................................................................................. 959 
j0, j1, jn, y0, y1, yn ........................................................................................... 959 
killpg ................................................................................................................. 960 
labs ................................................................................................................... 960 
ldexp ................................................................................................................. 961 
ldiv .................................................................................................................... 961 
lgamma ............................................................................................................. 962 
libinn ................................................................................................................ 962 
libpbm .............................................................................................................. 966 
libpgm .............................................................................................................. 969 
libpnm .............................................................................................................. 970
xxi Introduction 
libppm .............................................................................................................. 973 
localeconv ......................................................................................................... 974 
longjmp ............................................................................................................ 975 
lfind, lsearch ...................................................................................................... 975 
calloc, malloc, free, realloc ................................................................................. 976 
mblen ................................................................................................................ 977 
mbstowcs .......................................................................................................... 977 
mbtowc ............................................................................................................. 978 
memccpy .......................................................................................................... 978 
memchr ............................................................................................................ 979 
memcmp........................................................................................................... 979 
memcpy ............................................................................................................ 980 
memfrob ........................................................................................................... 980 
memmem.......................................................................................................... 981 
memmove ......................................................................................................... 981 
memset ............................................................................................................. 982 
mkfifo ............................................................................................................... 982 
mkstemp ........................................................................................................... 983 
mktemp ............................................................................................................ 983 
modf ................................................................................................................. 984 
asctime, ctime, difftime, gmtime, localtime, mktime ......................................... 984 
tzset .................................................................................................................. 986 
on_exit .............................................................................................................. 988 
opendir ............................................................................................................. 989 
parsedate ........................................................................................................... 989 
perror ................................................................................................................ 990 
popen, pclose .................................................................................................... 991 
printf, fprintf, sprintf, snprintf, vprintf, vfprintf, vsprintf, vsnprintf .................. 992 
psignal .............................................................................................................. 996 
putenv ............................................................................................................... 996 
putpwent .......................................................................................................... 997 
fputc, fputs, putc, putchar, puts ........................................................................ 997 
qio .................................................................................................................... 998 
qsort ................................................................................................................ 1000 
raise ................................................................................................................ 1000 
rand, srand ...................................................................................................... 1001 
random, srandom, initstate, setstate ................................................................ 1001 
readdir ............................................................................................................ 1002 
readv, writev .................................................................................................... 1003 
realpath ........................................................................................................... 1004 
Re_comp, re_exec ........................................................................................... 1005 
regcomp, regexec, regerror, regfree .................................................................. 1005 
remove ............................................................................................................ 1007 
res_query, res_search, res_mkquery, res_send, res_init, dn_comp, 
dn_expand .................................................................................................... 1008
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Linux full command_reference

  • 1. i Introduction LINUX COMPLETE Command Reference Compiled by J. Purcell Red Hat Software, Inc. 201 West 103rd Street Indianapolis, Indiana 46290 For more information on the Linux operating system and Red Hat Software, Inc., check http://www.redhat.com.
  • 2. COPYRIGHT © 1997 BY RED HAT SOFTWARE, INC. FIRST EDITION All rights reserved. No part of this book shall be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without written permission from the publisher. No patent liability is assumed with respect to the use of the information contained herein. Although every precaution has been taken in the preparation of this book, the publisher and author assume no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. For information, address Sams Publishing, 201 W. 103rd St., Indianapolis, IN 46290. International Standard Book Number: 0-672-31104-6 Library of Congress Catalog Card Number: 97-66202 2000 99 98 97 4 3 2 1 Interpretation of the printing code: the rightmost double-digit number is the year of the book’s printing; the rightmost single-digit, the number of the book’s printing. For example, a printing code of 97-1 shows that the first printing of the book occurred in 1997. Composed in AGaramond and MCPdigital by Macmillan Computer Publishing Printed in the United States of America TRADEMARKS All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Sams Publishing cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. President Richard K. Swadley Publisher and Director of Acquisitions Jordan Gold Director of Product Development Dean Miller Managing Editor Kitty Wilson Jarrett Indexing Manager Johnna L. VanHoose Director of Marketing Kelli S. Spencer Associate Product Marketing Manager Jennifer Pock Marketing Coordinator Linda Beckwith Acquisitions Editor Grace M. Buechlein Development Editor Brian Proffitt Software Development Specialist Jack Belbot Production Editor Kitty Wilson Jarrett Kate Shoup Welsh Copy Editors Kimberly K. Hannel Carolyn Linn Kristine Simmons Indexer Christine L. Nelsen Technical Reviewer Bill Ball Editorial Coordinators Mandie Rowell Katie Wise Technical Edit Coordinator Lynette Quinn Editorial Assistants Carol Ackerman Andi Richter Rhonda Tinch-Mize Karen Williams Cover Designer Karen Ruggles Book Designer Ann Jones Copy Writer David Reichwein Production Team Supervisor Beth Lewis Production Team Erin Danielson, Bryan Flores, DiMonique Ford, Julie Geeting, Kay Hoskin, Christy M. Lemasters, Tony McDonald, Darlena Murray, Julie Searls, Sossity Smith
  • 3. Overview Part I User Commands 2 Part II System Calls 738 Part III Library Functions 892 Part IV Special Files 1064 Part V File Formats 1104 Part VI Games 1210 Part VII Miscellaneous 1214 Part VIII Administration and Privileged Commands 1258 Part IX Kernel Reference Guide 1424 Index
  • 4. Linux Complete Command Reference iv Part I User Commands Introduction ......................................................................................................... 2 addftinfo ............................................................................................................... 2 afmtodit ................................................................................................................ 2 ansi2knr ................................................................................................................ 4 anytopnm ............................................................................................................. 4 appres ................................................................................................................... 5 ar .......................................................................................................................... 5 arch ....................................................................................................................... 8 GNU as ................................................................................................................ 8 asciitopgm ........................................................................................................... 10 atktopbm ............................................................................................................ 10 bash .................................................................................................................... 11 bdftopcf .............................................................................................................. 47 beforelight ........................................................................................................... 47 biff ...................................................................................................................... 48 bioradtopgm ....................................................................................................... 48 bitmap, bmtoa, atobm ........................................................................................ 49 bmptoppm .......................................................................................................... 57 brushtopbm ........................................................................................................ 57 cal ....................................................................................................................... 58 cat ....................................................................................................................... 58 chattr .................................................................................................................. 59 chfn .................................................................................................................... 60 chgrp................................................................................................................... 61 chkdupexe ........................................................................................................... 61 chmod................................................................................................................. 61 chown ................................................................................................................. 62 chsh .................................................................................................................... 63 ci ......................................................................................................................... 64 cidentd ................................................................................................................ 69 cksum ................................................................................................................. 70 clear .................................................................................................................... 70 cmuwmtopbm .................................................................................................... 71 co ........................................................................................................................ 71 col ....................................................................................................................... 76 colcrt ................................................................................................................... 77 colrm .................................................................................................................. 77 column................................................................................................................ 78 comm.................................................................................................................. 78
  • 5. v Introduction convdate.............................................................................................................. 79 cp ........................................................................................................................ 80 cccp, cpp ............................................................................................................. 81 crontab................................................................................................................ 84 csplit ................................................................................................................... 85 ctags .................................................................................................................... 87 cu ........................................................................................................................ 88 cut ...................................................................................................................... 90 cvs ....................................................................................................................... 91 date ................................................................................................................... 106 dd ..................................................................................................................... 108 depmod, modprobe ........................................................................................... 109 df ...................................................................................................................... 112 dig .................................................................................................................... 113 dnsquery ........................................................................................................... 117 domainname ..................................................................................................... 119 dsplit ................................................................................................................. 119 du ..................................................................................................................... 120 editres ............................................................................................................... 121 elvis, ex, vi, view, input ..................................................................................... 126 elvprsv ............................................................................................................... 128 elvrec ................................................................................................................. 129 emacs ................................................................................................................ 130 emacstool .......................................................................................................... 134 etags .................................................................................................................. 135 expand .............................................................................................................. 137 find ................................................................................................................... 137 fitstopnm .......................................................................................................... 142 fmt .................................................................................................................... 143 fold ................................................................................................................... 143 free .................................................................................................................... 144 fsinfo ................................................................................................................. 145 fslsfonts ............................................................................................................. 145 fstobdf ............................................................................................................... 146 fstopgm ............................................................................................................. 147 ftp ..................................................................................................................... 147 fuser .................................................................................................................. 154 g++.................................................................................................................... 155 g3topbm ........................................................................................................... 160 gawk ................................................................................................................. 161
  • 6. Linux Complete Command Reference vi gcal ................................................................................................................... 173 gcc, g++ ............................................................................................................. 174 gemtopbm ........................................................................................................ 201 geqn .................................................................................................................. 202 getlist ................................................................................................................ 206 getopt ................................................................................................................ 207 giftopnm ........................................................................................................... 208 gindxbib ............................................................................................................ 209 glookbib ............................................................................................................ 210 gnroff ................................................................................................................ 210 gouldtoppm ...................................................................................................... 211 gpic ................................................................................................................... 211 gprof ................................................................................................................. 216 grefer ................................................................................................................. 217 grep, egrep, fgrep .............................................................................................. 224 grephistory ........................................................................................................ 226 grodvi ............................................................................................................... 227 groff .................................................................................................................. 228 grog .................................................................................................................. 230 grops ................................................................................................................. 230 grotty ................................................................................................................ 235 gsoelim .............................................................................................................. 236 gtbl ................................................................................................................... 236 gtroff ................................................................................................................. 237 gzip, gunzip, zcatgzip, gunzip, zcat .................................................................... 248 gzexe ................................................................................................................. 252 head .................................................................................................................. 253 hexdump ........................................................................................................... 254 hipstopgm ......................................................................................................... 256 host ................................................................................................................... 257 hostid ................................................................................................................ 258 hostname .......................................................................................................... 259 hpcdtoppm v0.3 ................................................................................................ 260 httpd ................................................................................................................. 261 icontopbm ........................................................................................................ 262 ident ................................................................................................................. 262 ilbmtoppm ........................................................................................................ 263 imake ................................................................................................................ 264 imgtoppm ......................................................................................................... 267 inews ................................................................................................................. 267 info ................................................................................................................... 269 innconfval ......................................................................................................... 270 insmod .............................................................................................................. 271 install ................................................................................................................ 272 installit .............................................................................................................. 273
  • 7. vii Introduction ispell, buildhash, munchlist, findaffix, tryaffix, icombine, ijoin ......................... 274 join ................................................................................................................... 282 kill .................................................................................................................... 283 killall ................................................................................................................. 284 ksyms ................................................................................................................ 284 last .................................................................................................................... 285 lbxproxy ............................................................................................................ 286 ld ...................................................................................................................... 287 lispmtopgm ....................................................................................................... 292 lkbib ................................................................................................................. 292 ln ...................................................................................................................... 293 lndir .................................................................................................................. 294 locate ................................................................................................................ 295 logger ................................................................................................................ 295 login .................................................................................................................. 296 look ................................................................................................................... 297 lpq .................................................................................................................... 298 lpr ..................................................................................................................... 299 lprm .................................................................................................................. 301 lptest ................................................................................................................. 302 ls, dir, vdir ......................................................................................................... 303 lsattr .................................................................................................................. 304 lsmod ................................................................................................................ 305 lynx ................................................................................................................... 306 macptopbm ....................................................................................................... 309 make ................................................................................................................. 310 makedepend ...................................................................................................... 312 makestrs ............................................................................................................ 314 mattrib .............................................................................................................. 315 mbadblocks ....................................................................................................... 316 mcd................................................................................................................... 316 mcookie ............................................................................................................ 317 mcopy ............................................................................................................... 317 md5sum ............................................................................................................ 318 mdel .................................................................................................................. 318 mdeltree ............................................................................................................ 319 mdir .................................................................................................................. 319 merge ................................................................................................................ 320 mesg.................................................................................................................. 321 mformat ............................................................................................................ 321 mgrtopbm ......................................................................................................... 322 mkdir ................................................................................................................ 323 mkdirhier .......................................................................................................... 323 mkfifo ............................................................................................................... 323 mkmanifest ....................................................................................................... 324
  • 8. Linux Complete Command Reference viii mknod .............................................................................................................. 325 mlabel ............................................................................................................... 325 mmd ................................................................................................................. 326 mmount ............................................................................................................ 326 mmove .............................................................................................................. 327 more ................................................................................................................. 327 mrd ................................................................................................................... 329 mread ................................................................................................................ 329 mren ................................................................................................................. 329 mtest ................................................................................................................. 330 mtools ............................................................................................................... 330 mtvtoppm ......................................................................................................... 333 mtype................................................................................................................ 333 mv .................................................................................................................... 334 mwrite .............................................................................................................. 335 namei ................................................................................................................ 335 newaliases .......................................................................................................... 336 newgrp .............................................................................................................. 336 nl ...................................................................................................................... 337 nlmconv ............................................................................................................ 338 nm .................................................................................................................... 339 nntpget ............................................................................................................. 340 objcopy ............................................................................................................. 341 objdump ........................................................................................................... 342 oclock ............................................................................................................... 344 od ..................................................................................................................... 345 passwd .............................................................................................................. 346 paste .................................................................................................................. 347 pbmclean .......................................................................................................... 348 pbmfilters .......................................................................................................... 348 pbmlife ............................................................................................................. 352 pbmmake .......................................................................................................... 353 pbmmask .......................................................................................................... 353 pbmpscale ......................................................................................................... 354 pbmreduce ........................................................................................................ 355 pbmtext ............................................................................................................ 355 pbmto10x ......................................................................................................... 356 pbmto4425 ....................................................................................................... 357 pbmtoascii ........................................................................................................ 357 pbmtoatk .......................................................................................................... 358 pbmtobg ........................................................................................................... 358 pbmtocmuwm .................................................................................................. 358 pbmtoepsi ......................................................................................................... 359 pbmtoepson ...................................................................................................... 359 pbmtog3 ........................................................................................................... 360
  • 9. ix Introduction pbmtogem ........................................................................................................ 360 pbmtogo ........................................................................................................... 360 pbmtoicon ........................................................................................................ 361 pbmtolj ............................................................................................................. 361 pbmtoln03 ........................................................................................................ 362 pbmtolps ........................................................................................................... 362 pbmtomacp ....................................................................................................... 363 pbmtomgr ......................................................................................................... 363 pbmtopgm ........................................................................................................ 364 pbmtopi3 .......................................................................................................... 364 pbmtopk ........................................................................................................... 364 pbmtoplot ......................................................................................................... 365 pbmtoptx .......................................................................................................... 366 pbmtox10bm .................................................................................................... 366 pbmtoxbm ........................................................................................................ 367 pgmtoybm ........................................................................................................ 367 pbmtozinc ......................................................................................................... 367 pbmupc ............................................................................................................ 368 pcxtoppm .......................................................................................................... 368 pfbtops .............................................................................................................. 369 pgmbentley ....................................................................................................... 369 pgmcrater .......................................................................................................... 370 pgmedge ........................................................................................................... 371 pgmenhance ...................................................................................................... 371 pgmhist ............................................................................................................. 372 pgmkernel ......................................................................................................... 372 pgmnoise .......................................................................................................... 373 pgmnorm .......................................................................................................... 373 pgmoil .............................................................................................................. 374 pgmramp .......................................................................................................... 374 pgmtexture ........................................................................................................ 375 pgmtofs ............................................................................................................. 376 pgmtolispm ....................................................................................................... 376 pgmtopbm ........................................................................................................ 377 pgmtoppm ........................................................................................................ 378 pi1toppm .......................................................................................................... 378 pi3topbm .......................................................................................................... 379 picttoppm ......................................................................................................... 379 pjtoppm ............................................................................................................ 381 pktopbm ........................................................................................................... 381 pnmalias ............................................................................................................ 381 pnmarith ........................................................................................................... 382 pnmcat .............................................................................................................. 383 pnmcomp ......................................................................................................... 383 pnmconvol ........................................................................................................ 384
  • 10. Linux Complete Command Reference x pnmcrop ........................................................................................................... 385 pnmcut ............................................................................................................. 385 pnmdepth ......................................................................................................... 385 pnmenlarge ....................................................................................................... 386 pnmfile ............................................................................................................. 386 pnmflip ............................................................................................................. 387 pnmgamma ....................................................................................................... 387 pnmhistmap ...................................................................................................... 388 pnmindex .......................................................................................................... 388 pnminvert ......................................................................................................... 389 pnmmargin ....................................................................................................... 389 pnmnlfilt ........................................................................................................... 390 pnmnoraw ........................................................................................................ 391 pnmpad ............................................................................................................ 392 pnmpaste .......................................................................................................... 392 pnmrotate ......................................................................................................... 393 pnmscale ........................................................................................................... 393 pnmshear .......................................................................................................... 394 pnmsmooth ...................................................................................................... 395 pnmtile ............................................................................................................. 395 pnmtoddif ......................................................................................................... 396 pnmtofits .......................................................................................................... 396 pnmtops............................................................................................................ 397 pnmtorast ......................................................................................................... 398 pnmtosgi ........................................................................................................... 398 pnmtosir ........................................................................................................... 399 pnmtotiff .......................................................................................................... 399 pnmtoxwd ........................................................................................................ 400 ppm3d .............................................................................................................. 400 ppmbrighten ..................................................................................................... 401 ppmchange ....................................................................................................... 401 ppmdim ............................................................................................................ 402 ppmdist............................................................................................................. 402 ppmdither ......................................................................................................... 403 ppmflash ........................................................................................................... 404 ppmforge .......................................................................................................... 404 ppmhist............................................................................................................. 408 ppmmake .......................................................................................................... 408 ppmmix ............................................................................................................ 408 ppmnorm.......................................................................................................... 409 ppmntsc ............................................................................................................ 409 ppmpat ............................................................................................................. 410 ppmquant ......................................................................................................... 411 ppmquantall...................................................................................................... 412 ppmqvga ........................................................................................................... 412
  • 11. xi Introduction ppmrelief .......................................................................................................... 413 ppmshift ........................................................................................................... 413 ppmspread ........................................................................................................ 414 ppmtoacad ........................................................................................................ 414 ppmtobmp ........................................................................................................ 416 ppmtogif ........................................................................................................... 416 ppmtoicr ........................................................................................................... 417 ppmtoilbm ........................................................................................................ 418 ppmtomap ........................................................................................................ 419 ppmtomitsu ...................................................................................................... 420 ppmtopcx .......................................................................................................... 421 ppmtopgm ........................................................................................................ 421 ppmtopi1 .......................................................................................................... 422 ppmtopict ......................................................................................................... 422 ppmtopj ............................................................................................................ 423 ppmtopjxl ......................................................................................................... 424 ppmtopuzz ........................................................................................................ 424 ppmtorgb3 ........................................................................................................ 425 ppmtosixel ........................................................................................................ 425 ppmtotga .......................................................................................................... 426 ppmtouil ........................................................................................................... 427 ppmtoxpm ........................................................................................................ 427 ppmtoyuv ......................................................................................................... 428 ppmtoyuvsplit ................................................................................................... 428 pr ...................................................................................................................... 429 ps ...................................................................................................................... 430 psbb .................................................................................................................. 433 psidtopgm ......................................................................................................... 433 pstopnm............................................................................................................ 434 pstree ................................................................................................................ 435 psupdate ........................................................................................................... 436 qrttoppm .......................................................................................................... 436 quota ................................................................................................................. 437 ranlib ................................................................................................................ 437 rasttopnm ......................................................................................................... 438 rawtopgm .......................................................................................................... 439 rawtoppm ......................................................................................................... 439 rcp .................................................................................................................... 440 rcs ..................................................................................................................... 441 rcsclean ............................................................................................................. 443 rcsdiff ................................................................................................................ 445 rcsfreeze ............................................................................................................ 446 rcsintro ............................................................................................................. 447 rcsmerge ............................................................................................................ 449 rdist .................................................................................................................. 451
  • 12. Linux Complete Command Reference xii reconfig ............................................................................................................. 454 ref ..................................................................................................................... 455 reset .................................................................................................................. 456 resize ................................................................................................................. 456 rev ..................................................................................................................... 457 rgb3toppm ........................................................................................................ 457 rlog ................................................................................................................... 458 rlogin ................................................................................................................ 460 rm ..................................................................................................................... 461 rmdir ................................................................................................................ 462 rmmod .............................................................................................................. 462 rnews ................................................................................................................ 463 rpcgen ............................................................................................................... 464 rsh ..................................................................................................................... 466 rstart ................................................................................................................. 467 rstartd ............................................................................................................... 468 rup .................................................................................................................... 472 rusers ................................................................................................................ 472 rwall .................................................................................................................. 473 rwho ................................................................................................................. 474 script ................................................................................................................. 474 sed .................................................................................................................... 475 sessreg ............................................................................................................... 480 setterm .............................................................................................................. 482 sgitopnm ........................................................................................................... 483 shar ................................................................................................................... 484 shlock................................................................................................................ 487 showrgb ............................................................................................................ 488 shrinkfile ........................................................................................................... 488 sirtopnm ........................................................................................................... 488 size .................................................................................................................... 489 sldtoppm ........................................................................................................... 490 smproxy ............................................................................................................ 491 sort .................................................................................................................... 492 spctoppm .......................................................................................................... 494 split ................................................................................................................... 494 spottopgm ......................................................................................................... 495 sputoppm .......................................................................................................... 495 sq ...................................................................................................................... 496 startx ................................................................................................................. 496 strings ............................................................................................................... 498 strip .................................................................................................................. 499 subst ................................................................................................................. 500 sum ................................................................................................................... 501 SuperProbe ....................................................................................................... 501
  • 13. xiii Introduction tac ..................................................................................................................... 503 tail .................................................................................................................... 504 talk .................................................................................................................... 505 tcal .................................................................................................................... 506 telnet ................................................................................................................. 507 tfmtodit ............................................................................................................ 513 tftp .................................................................................................................... 514 tgatoppm .......................................................................................................... 515 tifftopnm .......................................................................................................... 515 tin, rtin, cdtin, tind ........................................................................................... 516 tload .................................................................................................................. 533 top .................................................................................................................... 533 touch ................................................................................................................ 536 tr ....................................................................................................................... 536 tset, reset ........................................................................................................... 539 tsort .................................................................................................................. 542 twm .................................................................................................................. 542 txt2gcal ............................................................................................................. 558 ul ...................................................................................................................... 558 unexpand .......................................................................................................... 559 uniq .................................................................................................................. 560 unshar ............................................................................................................... 560 updatedb ........................................................................................................... 561 uptime .............................................................................................................. 562 userlist ............................................................................................................... 563 uucp .................................................................................................................. 563 uuencode .......................................................................................................... 565 uustat ................................................................................................................ 566 uux.................................................................................................................... 569 uuxqt ................................................................................................................ 572 w....................................................................................................................... 573 wall ................................................................................................................... 574 wc ..................................................................................................................... 574 whereis .............................................................................................................. 575 write .................................................................................................................. 576 x11perf.............................................................................................................. 577 x11perfcomp ..................................................................................................... 585 xargs .................................................................................................................. 586 xauth ................................................................................................................. 587 xbmtopbm ........................................................................................................ 592 xcmsdb.............................................................................................................. 592 xclock ................................................................................................................ 593 xclipboard ......................................................................................................... 595 xconsole ............................................................................................................ 597 xcutsel ............................................................................................................... 598
  • 14. Linux Complete Command Reference xiv xdm .................................................................................................................. 599 xdpyinfo ............................................................................................................ 614 Xf86_Accel ....................................................................................................... 614 XF86_Mono ..................................................................................................... 624 XF86_SVGA .................................................................................................... 627 XF86_VGA16 .................................................................................................. 631 xf86config ......................................................................................................... 633 xfd .................................................................................................................... 633 XFree86 ............................................................................................................ 636 xfs ..................................................................................................................... 641 xhost ................................................................................................................. 643 xieperf ............................................................................................................... 645 ximtoppm ......................................................................................................... 654 xinetd ................................................................................................................ 655 xinit .................................................................................................................. 664 xkill ................................................................................................................... 666 xlogo ................................................................................................................. 667 xlsatoms ............................................................................................................ 668 xlsclients ............................................................................................................ 669 xlsfonts .............................................................................................................. 670 xmag ................................................................................................................. 671 xmkmf .............................................................................................................. 672 xmodmap .......................................................................................................... 672 xon .................................................................................................................... 676 xpmtoppm ........................................................................................................ 677 xprop ................................................................................................................ 677 xrdb .................................................................................................................. 681 xrefresh ............................................................................................................. 684 Xserver .............................................................................................................. 685 xset .................................................................................................................... 690 xsetroot ............................................................................................................. 693 xsm ................................................................................................................... 694 xsmclient ........................................................................................................... 698 xstdcmap ........................................................................................................... 699 xterm ................................................................................................................ 700 Xvfb .................................................................................................................. 717 xvidtune ............................................................................................................ 719 xvminitoppm .................................................................................................... 720 xwd ................................................................................................................... 721 xwdtopnm ........................................................................................................ 722 xwininfo ............................................................................................................ 722 xwud ................................................................................................................. 725 ybmtopbm ........................................................................................................ 726 ytalk .................................................................................................................. 727 yuvplittoppm .................................................................................................... 730
  • 15. xv Introduction yuvtoppm ......................................................................................................... 731 zcmp, zdiff ........................................................................................................ 731 zeisstopnm ........................................................................................................ 732 zforce ................................................................................................................ 732 zgrep ................................................................................................................. 733 zmore ................................................................................................................ 733 znew.................................................................................................................. 734 Part II System Calls intro .................................................................................................................. 738 exit .................................................................................................................... 739 accept ................................................................................................................ 740 access ................................................................................................................ 741 acct ................................................................................................................... 742 adjtimex ............................................................................................................ 742 alarm ................................................................................................................. 744 bdflush .............................................................................................................. 744 bind .................................................................................................................. 745 brk, sbrk ............................................................................................................ 746 cacheflush ......................................................................................................... 746 chdir, fchdir ...................................................................................................... 747 chmod, fchmod ................................................................................................. 748 chown, fchown ................................................................................................. 749 chroot ............................................................................................................... 750 clone ................................................................................................................. 751 close .................................................................................................................. 752 connect ............................................................................................................. 752 dup, dup2 ......................................................................................................... 753 execve ................................................................................................................ 754 fcntl .................................................................................................................. 755 fdatasync ........................................................................................................... 756 flock .................................................................................................................. 757 fork, vfork ......................................................................................................... 758 fsync ................................................................................................................. 758 getdents ............................................................................................................ 759 getdomainname, setdomainname ...................................................................... 760 getdtablesize ...................................................................................................... 760 getgid, getegid ................................................................................................... 761 getgroups, setgroups .......................................................................................... 761 gethostid, sethostid ........................................................................................... 762 gethostname, sethostname ................................................................................. 763 getitimer, setitimer ............................................................................................ 763 getpagesize ........................................................................................................ 765 getpeername ...................................................................................................... 765 getpid, getppid .................................................................................................. 766 getpriority, setpriority ....................................................................................... 766
  • 16. Linux Complete Command Reference xvi getrlimit, getrusage, setrlimit ............................................................................. 767 getsid ................................................................................................................ 768 getsockname...................................................................................................... 769 getsockopt, setsockopt ....................................................................................... 769 gettimeofday, settimeofday ................................................................................ 772 getuid, geteuid .................................................................................................. 773 idle .................................................................................................................... 774 ioctl ................................................................................................................... 774 ioperm .............................................................................................................. 788 iopl ................................................................................................................... 788 ipc ..................................................................................................................... 789 kill .................................................................................................................... 790 killpg ................................................................................................................. 790 link ................................................................................................................... 791 listen ................................................................................................................. 792 llseek ................................................................................................................. 793 lseek .................................................................................................................. 793 mkdir ................................................................................................................ 794 mknod .............................................................................................................. 795 mlock ................................................................................................................ 796 mlockall ............................................................................................................ 797 mmap, munmap ............................................................................................... 799 modify_ldt ........................................................................................................ 800 get_kernel_syms, create_module, init_module, delete_module ......................... 800 mount, umount ................................................................................................ 802 mprotect ........................................................................................................... 804 mremap ............................................................................................................ 805 msgctl ............................................................................................................... 806 msgget............................................................................................................... 807 msgop ............................................................................................................... 808 msync ............................................................................................................... 811 munlock ............................................................................................................ 811 munlockall ........................................................................................................ 812 nanosleep .......................................................................................................... 813 nice ................................................................................................................... 814 oldfstat, oldlstat, oldstat, oldolduname, olduname ............................................ 814 open, creat ........................................................................................................ 815 outb, outw, outl, outsb, outsw, outsl ................................................................. 816 pause ................................................................................................................. 817 personality ........................................................................................................ 817 phys .................................................................................................................. 818 pipe ................................................................................................................... 818 profil ................................................................................................................. 819 ptrace ................................................................................................................ 820 quotactl ............................................................................................................. 821
  • 17. xvii Introduction read ................................................................................................................... 822 readdir .............................................................................................................. 823 readlink ............................................................................................................. 823 readv, writev ...................................................................................................... 824 reboot ............................................................................................................... 825 recv, recvfrom, recvmsg ..................................................................................... 826 rename .............................................................................................................. 828 rmdir ................................................................................................................ 829 sched_get_priority_max, sched_get_priority_min ............................................. 830 sched_rr_get_interval ........................................................................................ 831 sched_setparam, sched_getparam ...................................................................... 832 sched_setscheduler, sched_getscheduler ............................................................ 833 sched_yield ....................................................................................................... 835 select, FD_CLR, FD_ISSET, FD_SET, FD_ZERO......................................... 835 semctl ................................................................................................................ 837 semget ............................................................................................................... 839 semop ............................................................................................................... 840 send, sendto, sendmsg ....................................................................................... 842 setfsgid .............................................................................................................. 843 setfsuid .............................................................................................................. 844 setgid ................................................................................................................ 845 setpgid, getpgid, setpgrp, getpgrp ...................................................................... 845 setregid, setegid ................................................................................................. 846 setreuid, seteuid ................................................................................................ 847 setsid ................................................................................................................. 848 setuid ................................................................................................................ 848 setup ................................................................................................................. 849 shmctl ............................................................................................................... 849 shmget .............................................................................................................. 851 shmop ............................................................................................................... 853 shutdown .......................................................................................................... 855 sigaction, sigprocmask, sigpending, sigsuspend .................................................. 855 signal ................................................................................................................. 857 sigblock, siggetmask, sigsetmask, sigmask .......................................................... 858 sigpause ............................................................................................................. 858 sigreturn ............................................................................................................ 859 sigvec ................................................................................................................ 860 socket ................................................................................................................ 860 socketcall ........................................................................................................... 862 socketpair .......................................................................................................... 862 stat, fstat, lstat ................................................................................................... 863 statfs, fstatfs ....................................................................................................... 865 stime ................................................................................................................. 866 swapon, swapoff ................................................................................................ 866 symlink ............................................................................................................. 867
  • 18. Linux Complete Command Reference xviii sync ................................................................................................................... 869 sysctl ................................................................................................................. 869 sysfs ................................................................................................................... 871 sysinfo ............................................................................................................... 871 syslog ................................................................................................................ 872 termios, tcgetattr, tcsetattr, tcsendbreak, tcdrain, tcflush, tcflow, cfgetospeed, cfgetispeed, cfsetispeed, cfsetospeed, tcgetpgrp, tcsetpgrp ............................... 874 time .................................................................................................................. 878 times ................................................................................................................. 878 truncate, ftruncate ............................................................................................. 879 umask ............................................................................................................... 880 uname ............................................................................................................... 880 none.................................................................................................................. 881 afs_syscall, break, gtty, lock, mpx, prof, quotactl, stty, ustat .............................. 881 unlink ............................................................................................................... 882 uselib ................................................................................................................ 883 ustat .................................................................................................................. 883 utime, utimes .................................................................................................... 884 vhangup ............................................................................................................ 885 vm86 ................................................................................................................ 885 wait, waitpid ..................................................................................................... 886 wait3, wait4 ...................................................................................................... 888 write.................................................................................................................. 889 Part III Library Functions Intro ................................................................................................................. 892 abort ................................................................................................................. 892 abs .................................................................................................................... 892 acos ................................................................................................................... 893 acosh ................................................................................................................. 893 alloca ................................................................................................................. 894 asin ................................................................................................................... 894 asinh ................................................................................................................. 895 assert ................................................................................................................. 895 atan ................................................................................................................... 896 atan2 ................................................................................................................. 896 atanh ................................................................................................................. 897 atexit ................................................................................................................. 897 atof ................................................................................................................... 898 atoi .................................................................................................................... 898 atol .................................................................................................................... 899 bcmp................................................................................................................. 899 bcopy ................................................................................................................ 900 bsearch .............................................................................................................. 900 bcmp, bcopy, bzero, memccpy, memchr, memcmp, memcpy, memfrob, memmem, memmove, memset......................................................................................... 901
  • 19. xix Introduction htonl, htons, ntohl, ntohs ................................................................................. 901 bzero ................................................................................................................. 902 catgets ............................................................................................................... 902 catopen, catclose ............................................................................................... 903 ceil .................................................................................................................... 904 clientlib ............................................................................................................. 904 clock ................................................................................................................. 905 closedir .............................................................................................................. 905 confstr ............................................................................................................... 906 copysign ............................................................................................................ 907 cos .................................................................................................................... 907 cosh .................................................................................................................. 908 crypt ................................................................................................................. 908 ctermid ............................................................................................................. 909 asctime, ctime, gmtime, localtime, mktime ....................................................... 909 difftime ............................................................................................................. 911 div ..................................................................................................................... 911 drand48, erand48, lrand48, nrand48, mrand48, jrand48, srand48, seed48, lcong48 .............................................................................................. 912 drem ................................................................................................................. 913 ecvt, fcvt ........................................................................................................... 913 erf, erfc .............................................................................................................. 914 execl, execlp, execle, exect, execv, execvp ........................................................... 914 errno ................................................................................................................. 916 exit .................................................................................................................... 917 exp, log, log10, pow .......................................................................................... 917 expm1, log1p .................................................................................................... 918 fabs ................................................................................................................... 919 fclose ................................................................................................................. 919 clearerr, feof, ferror, fileno ................................................................................. 919 fflush, fpurge ..................................................................................................... 920 ffs ...................................................................................................................... 921 fgetgrent ............................................................................................................ 921 fgetpwent .......................................................................................................... 922 floor .................................................................................................................. 923 fmod ................................................................................................................. 923 fnmatch ............................................................................................................ 924 fopen, fdopen, freopen ...................................................................................... 924 fpathconf, pathconf ........................................................................................... 925 fread, fwrite ....................................................................................................... 926 frexp .................................................................................................................. 927 fgetpos, fseek, fsetpos, ftell, rewind .................................................................... 927 ftime ................................................................................................................. 928 ftok ................................................................................................................... 929 ftw .................................................................................................................... 930
  • 20. Linux Complete Command Reference xx gcvt ................................................................................................................... 930 getcwd, get_current_dir_name, getwd ............................................................... 931 getdirentries ...................................................................................................... 931 getenv ............................................................................................................... 932 getgrent, setgrent, endgrent ............................................................................... 932 getgrnam, getgrgid ............................................................................................ 933 getlogin, cuserid ................................................................................................ 934 getmntent, setmntent, addmntent, endmntent, hasmntopt ............................... 935 getnetent, getnetbyaddr, getnetbyname, setnetent, endnetent ........................... 936 getopt ................................................................................................................ 937 getpass ............................................................................................................... 940 getprotoent, getprotobyname, getprotobynumber, setprotoent, endprotoent .... 941 getpw ................................................................................................................ 942 getpwent, setpwent, endpwent .......................................................................... 943 getpwnam, getpwuid ......................................................................................... 944 fgetc, fgets, getc, getchar, gets, ungetc ............................................................... 944 getservent, getservbyname, getservbyport, setservent, endservent ....................... 945 getusershell, setusershell, endusershell ............................................................... 946 getutent, getutid, getutline, pututline, setutent, endutent, utmpname ............... 947 getw, putw ........................................................................................................ 948 glob, globfree .................................................................................................... 949 hosts_access, hosts_ctl ....................................................................................... 950 hcreate, hdestroy, hsearch .................................................................................. 951 hypot ................................................................................................................ 953 index, rindex ..................................................................................................... 953 inet_aton, inet_addr, inet_network, inet_ntoa, inet_makeaddr, inet_lnaof, inet_netof ....................................................................................................... 953 infnan ............................................................................................................... 954 initgroups .......................................................................................................... 955 inndcomm ........................................................................................................ 956 insque, remque .................................................................................................. 957 isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, islower, isprint, ispunct, isspace, isupper, isxdigit ..................................................................... 957 isatty ................................................................................................................. 958 isinf, isnan, finite .............................................................................................. 959 j0, j1, jn, y0, y1, yn ........................................................................................... 959 killpg ................................................................................................................. 960 labs ................................................................................................................... 960 ldexp ................................................................................................................. 961 ldiv .................................................................................................................... 961 lgamma ............................................................................................................. 962 libinn ................................................................................................................ 962 libpbm .............................................................................................................. 966 libpgm .............................................................................................................. 969 libpnm .............................................................................................................. 970
  • 21. xxi Introduction libppm .............................................................................................................. 973 localeconv ......................................................................................................... 974 longjmp ............................................................................................................ 975 lfind, lsearch ...................................................................................................... 975 calloc, malloc, free, realloc ................................................................................. 976 mblen ................................................................................................................ 977 mbstowcs .......................................................................................................... 977 mbtowc ............................................................................................................. 978 memccpy .......................................................................................................... 978 memchr ............................................................................................................ 979 memcmp........................................................................................................... 979 memcpy ............................................................................................................ 980 memfrob ........................................................................................................... 980 memmem.......................................................................................................... 981 memmove ......................................................................................................... 981 memset ............................................................................................................. 982 mkfifo ............................................................................................................... 982 mkstemp ........................................................................................................... 983 mktemp ............................................................................................................ 983 modf ................................................................................................................. 984 asctime, ctime, difftime, gmtime, localtime, mktime ......................................... 984 tzset .................................................................................................................. 986 on_exit .............................................................................................................. 988 opendir ............................................................................................................. 989 parsedate ........................................................................................................... 989 perror ................................................................................................................ 990 popen, pclose .................................................................................................... 991 printf, fprintf, sprintf, snprintf, vprintf, vfprintf, vsprintf, vsnprintf .................. 992 psignal .............................................................................................................. 996 putenv ............................................................................................................... 996 putpwent .......................................................................................................... 997 fputc, fputs, putc, putchar, puts ........................................................................ 997 qio .................................................................................................................... 998 qsort ................................................................................................................ 1000 raise ................................................................................................................ 1000 rand, srand ...................................................................................................... 1001 random, srandom, initstate, setstate ................................................................ 1001 readdir ............................................................................................................ 1002 readv, writev .................................................................................................... 1003 realpath ........................................................................................................... 1004 Re_comp, re_exec ........................................................................................... 1005 regcomp, regexec, regerror, regfree .................................................................. 1005 remove ............................................................................................................ 1007 res_query, res_search, res_mkquery, res_send, res_init, dn_comp, dn_expand .................................................................................................... 1008