topic Re: Cron question in Operating System - HP-UX

Cron question

dictum9 — Wed, 04 Apr 2007 15:38:15 GMT

How do I cron a script to run every 4 minutes?

Re: Cron question

Sundar_7 — Wed, 04 Apr 2007 15:41:11 GMT

2 ways to do it

1) You will have to list the minutes explictly in the cron like this

0,4,8,12,16,20.....56 * * * *

2) Control the execution programmatically using a wrapper.

Re: Cron question

A. Clay Stephenson — Wed, 04 Apr 2007 15:41:23 GMT

0,4,8,12,16,20,24,28,32,36,40,44,48,52,56 * * * * /xxx/yyy/mytask.sh

Re: Cron question

A. Clay Stephenson — Wed, 04 Apr 2007 15:43:46 GMT

By the way, did you bother to do a "man crontab" before you asked this question. That would tell you that you would do something like this (as well as answer your question):

crontab -l > myfile
edit myfile and make your changes
crontab < myfile

Re: Cron question

James R. Ferguson — Wed, 04 Apr 2007 15:43:53 GMT

Hi:

Look at the manpages for 'crontab' to see that a comma-delimited list is what you want:

# 0,4,8,12,16,20,24,28,32,36,40,44,48,52,56 * * * * /etc/mything

...would run /etc/mything every 4-minutes of every hour of every day of every month.

Regards!

...JRF...

Re: Cron question

sachit patil — Wed, 04 Apr 2007 15:56:59 GMT

#crontab -e
make enrty
0,4,8,12,16,20,24,28,32,36,40,44,48,52,56 * * * * script.sh

DO this

Re: Cron question

Steven E. Protter — Wed, 04 Apr 2007 16:05:50 GMT

Shalom etc,

Note that Linux has initiated some conventions that Unix does not support. The */4 convention you might find on a Linux support board will generally not work.

SEP

Re: Cron question

Arturo Galbiati — Thu, 05 Apr 2007 03:09:56 GMT

0,4,8,12,16,20,24,28,32,36,40,44,48,52,56 * * * * /full_path/your_script 1>out 2>err

Note that if you not redirect the oupit/error of the script this is send to the user email and you can see it by elm.

HTH,
Art

Re: Cron question

Yogeeraj_1 — Thu, 05 Apr 2007 04:27:07 GMT

hi,
see also:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1114824

kind regards
yogeeraj