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How to run a process continuously for an hour then stop?

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# 1  
Old 03-17-2014
How to run a process continuously for an hour then stop?
Hi I have a shell script I would like to run it has to run twice a day every 5 seconds for an hour I can do this with cron but I was hoping there was an easier way. Is there a way to make a process sleep only at a certain time of day say between 1 and 2 pm? Or under certain conditions?
Any help you can give me with this would be greatly appreciated
# 2  
Old 03-17-2014
I don't know why you don't like cron try man at

example :
Code:
echo "/usr/bin/ksh /path/to/script/scriptname.ksh" | at 10:30

Code:
at 1030 <<< "/usr/bin/ksh /path/to/script/scriptname.ksh"

# 3  
Old 03-17-2014
Since you want it to run every 5 seconds... for an hour, scheduled twice a day I dont see anything simpler than using cron twice a day, since cron cannot deal with seconds, that part must be done using sleep...
# 4  
Old 03-17-2014
Hi thanks for taking time read my post. Hmm can I set a process to stop with cron? I knew that I could set it to start but if the process continues to run for more than an hour it will cause problems.
Thank you
# 5  
Old 03-17-2014
I think you can keep track of pid of your command

example :
Code:
$ your_command 
$ echo $! >/path/to/pid.file

after some duration you can easily kill it.
# 6  
Old 03-17-2014
Thanks again, I am not really all that familiar with shell programing, but I try to muddle through. Could I set another cron processs an hour latter to stop the running command with out having to find the pid first? can I do it by name only?
Thanks again
# 7  
Old 03-17-2014
Well you could use a loop and a counter : 1 hour every 5 sec, thats 720 executions...
exit once value is reached...
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