shell/hush_test/hush-signals/signal5.tests

   1 trap "echo USR1 received" USR1
   2 stub() {
   3     echo "Sleeping"
   4     sleep $1
   5     echo "$1 sec passed, sending USR1 to parent"
   6     kill -USR1 $$
   7 }
   8 stub 3 &
   9 stub 2 &
  10 sleep 1
  11 until { echo "Waiting"; wait; } do
  12     echo "Wait exit code: $?"
  13 done
  14 echo "Wait returned 0"