Question

How do i make the script auto-restart i think there is some issue in the last line .

#!/bin/bash

# a shell script that keeps looping until an exit code is given

php_command="php -q -f $1.php "
shift
nice $php_command $@
ERR=$?
..............
..............
exec $0 $@

I get the follwoing error exec: 36: ss.sh: not found

Answer 1

You can use set -e and a simple while loop in bash:

#!/bin/sh

set -e

php_script=$1.php
shift

while true; do
    php $php_script $@
done

Once the PHP script returns an exit code of non-zero the bash script will stop. If you need to run any code after the loop is done, you can do this instead:

while php $php_script $@; do
    continue
done