On 08/29/2012 11:57 PM, Stephen Harris wrote:
On Wed, Aug 29, 2012 at 10:00:47PM +0200, Theo Band wrote:
and I cannot change this application. I want all processes that are children also to become suspended. I tried to add a trap, but that did not work.
Any idea how to make this work?
The magic phrase you're looking for is "process group". When you press control-Z a signal is sent to all the process in the process group, but when you send a "kill" it's only sent to one process.
So % ps -o pgrp $your_process
That'll tell you the process group. Then you kill -STOP -pgrp (note the negative ID sent to kill)
That'll send a signal to all processes in the group
Thanks Stephen
That's exactly what my application does wrong. I will ask the vendor to change the way they signal the external script. It's basically only adding a dash before the signal and it works!