topic Re: how to schedule cronjobs in linux in Operating System - Linux

how to schedule cronjobs in linux

yogesh kumar_2 — Mon, 22 Sep 2008 11:34:29 GMT

Hi,
Can any one tell me how to schedule cron jobs in linux.I want to schedule cron jobs at 12 'o' clock .

Re: how to schedule cronjobs in linux

Ivan Ferreira — Mon, 22 Sep 2008 11:42:05 GMT

http://www.scrounge.org/linux/cron.html

Re: how to schedule cronjobs in linux

Steven E. Protter — Mon, 22 Sep 2008 12:41:31 GMT

Shalom,

crontab -e

man crontab

example

00 8 * * 1-5 /usr/contrib/bin/block-crawlers > /dev/null

At 12:08 a.m. Monday through Friday run the script /usr/contrib/bin/block-crawlers directing the output to /dev/null

SEP

Re: how to schedule cronjobs in linux

yogesh kumar_2 — Mon, 22 Sep 2008 12:54:39 GMT

Hi i scheduled for each and every minute but it is not running.

Re: how to schedule cronjobs in linux

Ivan Ferreira — Mon, 22 Sep 2008 13:42:49 GMT

Post your cron definition. Check the user's mail, cron will report errors by mail.

Ensure you use absolute paths for commands and scripts.

I see in your profile:

I have assigned points to 0 of 70 responses to my questions.

Please take a time to assign points to the answers you get, is a good way to thank for the support. See:

http://forums1.itrc.hp.com/service/forums/helptips.do?#28

Have a nice day.

Re: how to schedule cronjobs in linux

Dennis Handly — Tue, 23 Sep 2008 02:50:10 GMT

>I want to schedule cron jobs at 12 o'clock.

This isn't precise. You need to think in terms of a 24 hour clock. Do you want it at 0000 (midnight) or 1200 (noon) or both?
00 00,12 * * * echo "does both"

Re: how to schedule cronjobs in linux

Suraj K Sankari — Tue, 23 Sep 2008 04:38:52 GMT

Hi,

crontab -l for listing
crontab -e for editing
crontab -r for removeing

these are the crontab fields
do crontab -e and set your program as per your plan

minute hour monthday month weekday command

* 0 * * * /home/abc/systemchk.sh (full path of command/program name)

Means every 00:00 hour this program will run

Suraj

Re: how to schedule cronjobs in linux

prasadb — Tue, 23 Sep 2008 04:47:46 GMT

hello yogesh,

you have not assigned points to any of these Gurus, please assign them proper points as they have give their precious time to resolve their prolem