Schedule a command for twice daily with cron?

pdeman2 · 06-14-2006, 04:35 PM

OK, I have a very quick question. I have Logwatch running once a day with cron, how do I set it up to run twice a day?

DrOzz · 06-14-2006, 04:40 PM

Code:

30      6,15     *       *       *     somecommand.sh

This is just purely an example, but you will see that this is a cron entry that will run at 6:30AM and then 3:30PM (15 is 3 in military time). Just comma seperate the hours, or comma seperate whatever section of the cron.

acid_kewpie · 06-14-2006, 04:40 PM

just put two values in the second column, e.g. "0 3,15 * * * command" would run at 3am and 3pm

pdeman2 · 06-14-2006, 06:50 PM

OK, I took the 0logwatch script from /etc/cron.daily and I put in a new directory called /etc/cron.twice_daily.
Then I added "0 5,17 * * * root run-parts /etc/cron.twice_daily" in my crontab and restarted cron.

That should work, right? This is the first time I've ever really used cron.

Thanks for the help.

DrOzz · 06-14-2006, 07:48 PM

yub, so at 5:00AM and 5PM your going to run

pdeman2 · 06-14-2006, 08:03 PM

Excellent