| trap "echo USR1 received" USR1 | |
| stub() { | |
| echo "sleeping for $1 sec" | |
| sleep $1 | |
| echo "$1 sec passed, sending USR1 to parent" | |
| kill -USR1 $$ | |
| } | |
| stub 3 & | |
| stub 2 & | |
| sleep 1 | |
| until { echo "Waiting"; wait; } do | |
| echo "Wait exit code: $?" | |
| done | |
| echo "Wait returned 0" |