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Bash4
1.
BASH 4
Amador Pahim Analista de Redes Universidade de Caxias do Sul amador@pahim.org
2.
--version ●
Bash 3 - July 27, 2004 ● Bash 4 - February 20, 2009
3.
Case – new
terminators ;;& testa próximo padrão ;& executa próxima lista de comandos
4.
Coproc coproc while read
Entrada; do echo $Entrada; done echo Teste >&${COPROC[1]} read -u ${COPROC[0]} Saida echo $Saida
5.
Mapfile mapfile array <
file
6.
Parameter substitution
case modification echo ${var} - default echo ${var^} - 1º uppercase echo ${var^^} - All uppercase echo ${var,} - 1º lowercase echo ${var,,} - All lowercase
7.
Declare declare -A array
declare -l var declare -c var
8.
Brace expansion
echo {00..10..2} echo {100..50..10}
9.
Substring echo ${@:0}
10.
** shopt -s globstar
echo **
11.
$BASHPID echo $BASHPID
12.
read read -e -t
3 -i default var
13.
Links http://www.gnu.org/software/bash/
ftp://ftp.gnu.org/gnu/bash/ http://br.gnome.org/TWikiBar/
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