[CentOS] Re: Single crontab entry for every 15 minutes beginning & ending on the hour

Tony Mountifield tony at softins.clara.co.uk
Wed Jun 18 22:05:43 UTC 2008


In article <d1f9b6f00806181011w2f5bde1fqffe824cbc565a802 at mail.gmail.com>,
Jeff <jlar310 at gmail.com> wrote:
> We have a cron job that needs to run every 15 minutes throughout
> business hours. The first run is at 8:00, the last run is at 17:00. Is
> it possible to specify this time range in a single line?
> 
> */15 8-17 * * 1-5  will run 8:00 - 17:45. That's not what I want.
> 
> Likewise
> 
> */15 8-16 * * 1-5  will have the last run at 16:45, not 17:00
> 
> This is more of a brainteaser than a real problem. I can easily
> configure the job with multiple entries, but I'm a little
> obsessive-compulsive so I want to try to do it with one entry.

I'm pretty sure it's not possible to do in one line just in cron.
You can do it with a bit of shell too:

*/15 8-17 * * 1-5 [ `date +\%H\%M` -lt 1715 ] && /do/my/job.sh

Cheers
Tony
-- 
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org



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