Here is description about how node app start forever and on server.

1. Five DifferentApprun on differentportnumber.
path like : /var/www/NTR/NodeApp1
/var/www/NTR/NodeApp2
/var/www/NTR/NodeApp3 ......etc
Step 1 : For Install Forever(Globally)
> npminstall forever-g
step 2 : Do followforeveryNodeApp:
For 1st app : cd /var/www/NTR/NodeApp1/ //Take Pathof NodeApp.
npm install
foreverstart --spinSleepTime10000 app1.js
For 2st app : cd /var/www/NTR/NodeApp2/
npm install
foreverstart --spinSleepTime10000 app2.js .........etc
step 3 : nano~/starter.sh // and copy the following:
#!/bin/sh
if [ $(ps -e -ouid,cmd| grep$UID | grepnode | grep -vgrep| wc -l | tr -s "n") -eq0 ]
then
exportPATH=/usr/local/bin:$PATH
foreverstart--spinSleepTime 10000 --sourceDir/var/www/NTR/NodeApp1/app1.js>>
/var/www/NTR/NodeApp1/log.txt2>&1
foreverstart--spinSleepTime 10000 --sourceDir/var/www/NTR/NodeApp2/app2.js>>
/var/www/NTR/NodeApp2/log.txt2>&1
//..........sameforall app....doit.
fi
step 4 : Thenuse
> crontab-e // and add the followingatlastof file:
@reboot/path/to/starter.sh

2. For check :
> foreverlist // Shouldsee all runningprocess
For restart :
> sudoreboot