Automatically Handling Signals

The event management commands can also deal with signals as events. These two commands have the same effect:

(dbx) stop sig signal
(dbx) catch signal

Having the signal event is more useful if you need to associate some pre-programmed action:

(dbx) when sig SIGCLD {echo Got $sig $signame;}

In this case make sure to first move SIGCLD to the ignore list:

(dbx) ignore SIGCLD