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I've tried to run a cronjob like this:

30/5 13-14 * * * ....

i.e I want to run the cron every 5minutes from 1:30PM to 2:30PM.

But it doesn't seems to work. Am I doing something wrong?

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up vote 6 down vote accepted

Use this syntax:

*/5 * * * * .....

But, the described situation needs to split the crontab entries in two:

30,35,40,45,50,55 13 * * * /your_job
0,5,10,15,20,25,30 14 * * * /your_job

Little more info:

The crontab looks like this:

(minutes) (hours) (day of month) (month) (day of week) (command)

Also you can use range of numbers (ex. 8-11) or list (ex. 1,2,5,10). More info you can find typing:
info crontab
In terminal.

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I want to run the cron job from 1:30PM to 2:30PM after every 5minutes in between. – droidlabour Nov 22 '12 at 8:30
See the edited post for your case. – Frantique Nov 22 '12 at 8:45
Isn't there any shorter code to work with? – droidlabour Nov 22 '12 at 8:48
I'm afraid this is the most self explicit method. – Frantique Nov 22 '12 at 8:48

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