killing cascade processes

Shell Programming and Scripting
1

Hi everybody!!

I've got a problem. I have a loop like this:

while true; do 
  some_work
  sleep 10m
done

It's possible to kill the main loop process and kill all childs from it? I want to kill main process and kill the sleep also. I tried kill -9 <loop_pid> with no result

Thanks in advance!!

2

You will have to kill the ksh instance from where the while loop was run.

3

Thank you blowtorch.

The problem is that the loop is executed through an apache web server with haserl interpreter (a way to build dinamic web with shell script).

When I kill the process with -9 signal, haserl process becomes in zombie state:

 PID TTY      STAT   TIME COMMAND
7821 ?        Z      0:00 [haserl] <defunct>

How can I force the exiting of this zombie process??

4

how about patching the code

echo $$ > /var/run/process.pid
while true; do 
  some_work
  [ ! -f /var/run/process.pid ] && exit 1
  sleep 10m
done
5

Not works, so the process can be killed althought it's slept