multijob.bash

bash -o monitor -O lastpipe /dev/fd/3 3<<\EOF
typeset -A j jobs
n=0
while ((n++ < 3)); do
{ set -m; trap "exit \$n" exit; suspend; } &
jobs+=([$!]=)
done
{ for x in "${!jobs[@]}"; do sleep .2; kill -CONT "$x"; done; } &
until wait -fnp jid "${!jobs[@]}"
(( (${jobs[$jid]+j[\$jid] = }$?) == 0)); do
unset -v "jobs[\$jid]" jid
done
typeset -p j
EOF