On 25/10/10 9:33 PM, Tha.Suresh wrote:
Sometimes we require a particular job to stop for a certain period
and start again.
Most of us familiar with the KILL command, But here is another cool
feature of the KILL command,
$ kill -STOP<pid>
$ kill -CONT<pid>
On the same context, an interesting shell script snippet that I remember
using at my earlier organization (to tick off a bunch of
users who were running some wav to mp3 encoding tools on a
multi-user server) as below (save as schedule.sh and try):
------------------8<------------------8<--------
#!/bin/sh
SLEEPTIME=$1
shift
RUNTIME=$1
shift
PID="$*"
while true
do
kill -STOP $PID
sleep $SLEEPTIME
kill -CONT $PID
sleep $RUNTIME
done
----------------8<---------------------8<--------
To run at the shell prompt,
pgrep lame | xargs ./schedule.sh 5 1
Have fun!
--
Chandrashekar Babu.,
http://www.chandrashekar.info/
http://www.slashprog.com/
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