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Old 12-07-2004, 02:03 AM   #1
Registered: Dec 2004
Location: Vienna
Posts: 46

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suspend running processes with crontab

is it possible to stop a process that I started with crontab in the evening, in the morning ?

afterwards I also wnat to restart the sleeping process the next evening...

Last edited by merlin23; 12-07-2004 at 02:05 AM.
Old 12-07-2004, 03:09 AM   #2
Registered: Dec 2004
Location: Vienna
Posts: 46

Original Poster
Rep: Reputation: 15
the easiest solution I found is to find out the pid of the processes and then add following entries:

0 20 * * * kill -CONT pid
30 6 * * * kill -STOP pid

that seems to work very fine...

but what, if I don't know the pid exactly, because the parent process opens child-processes, closes them and opens other ones with other pids?

Maybe it would be possible to write a shell script, that makes a "ps -aux | grep myapp" and extracts the pid?

Also I don't want to start a job while the other one still is working...
maybe a second shell script, that looks if there is any process in "ps -aux | grep myapp"?

Hmm..seems to be difficult...

Has anyone some ideas what would be the best way to manage this problem for this case?
I've never wrote a shell-script before...

Last edited by merlin23; 12-07-2004 at 03:11 AM.


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