On Fri, May 04, 2012 at 09:02:27PM +0200, John Kearney wrote:
> set -m
> cnt=0
> trap ': $(( --cnt ))' SIGCHLD
> set -- {0..20}
> while [ $# -gt 0 ]; do
> if [[ ${cnt} -lt 10 ]] ; then
>
> (
> d=$(( RANDOM % 10 ))
> echo $n sleeping $d
> sleep $d
> ) &
> : $(( ++cnt ))
> shift
> fi
> echo going to wait
> sleep 1
> done
You're busy-looping with a 1-second sleep instead of using wait and the
signal handler, which was the whole purpose of the previous example (and
of the set -m that you kept in yours). And $n should probably be $1 there.
