How to write a condition in Bourne shell

[Giorgos Keramidas]

On 2007-11-05 14:03, Olivier Nicole <on at cs.ait.ac.th> wrote:
> Hi,
>
> I am a lame Bourne sheel programmer, how to write:
>
>     while [ ( $? -ne 0 ) -a ( $retry -gt 0 ) ] ; do
>
> that should execute as long as $? is not null and $retry is greater
> than 0?

Try something like...

	retry=0
	done=-0
	while [ $done -eq 0 ] && [ $retry -lt 10 ]; do

		run_some_other_stuff_here

		if [ $? -eq 0 ]; then
			done=1
		fi
	done

	if [ $done -eq 0 ]; then
		echo "Failed after $retry attempts."
	fi