[Eug-lug] Shell script question

[Fred James]

Patrick R. Wade wrote:

>A shell script runs a for loop iterating a command:
>
>#!/bin/sh
># foo.sh ; an example script
>
>for i in foo bar baz
>	do find /home/$i
>	done
>
>exit 0
>
>If we run this and observe top, we will see three processes; one for
>foo.sh, another for a child foo.sh (the for loop) and one for find.
>
>If i send a kill to the parent foo.sh process, the child foo.sh and find
>jobs will continue running.  This, from what i gather, is normal *NIX
>behavior.  My objective, however, is to ensure that foo.sh exits by a
>certain time, so i have an at job waiting to send it a kill.  Is there
>an idiom when writing the script to ensure that the kill it receives
>will kill the child processes as well?  Is there a completely different
>approach i need to take when the design requirement of termination by a
>time certain is added?  Exhortations to learn Python are perhaps apropos
>but useless in the short term.
>
>  
>
Patrick R. Wade
Look into both killall, and fuser, and see if either of those two will 
help you.  YMMV
Regard
Fred James