See perlipc, search for "negative". Sending a signal to a negative PID sends the signal to a process group. However, heed the instructions to IGNORE it within 'A' so that you don't kill your original 'A' process.

After a little research following our discussion in the CB, it appears that the shell creates a new process group when you run 'A'. On further thought, this makes a lot of sense, or else signals sent to 'A' could also cause actions in your shell.

Update: Per CB discussion (thanks tye), perhaps kill SIGINT -getpgrp() would be more appropriate. Verify the variable of the signal.

--MidLifeXis

In reply to Re: Stopping subprocesses by MidLifeXis
in thread Stopping subprocesses by James Board

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