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Old 12-02-2012, 12:52 PM   #1
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Crontab question

so i was wondering if i could create a cron job by just adding a file called testcron under the /etc/cron.d/cron.daily directory or do i need to use crontab -e in order to create a cron job. I would be using Centos as an OS and as root. Thanks in advance.
Old 12-02-2012, 01:15 PM   #2
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/etc/cron.d/cron.daily ... Strange!! Is really there any directory named cron.daily? I know cron.deny, but not cron.daily.
Anyway, you can use crontab and add as many as jobs in it.

To edit crontab, use:
crontab -e
And to check your scheduled jobs in crontab:
crontab -l
Make entries in following format:
Minute Hour Day_of_month Month Day_of_week Command

Last edited by shivaa; 12-02-2012 at 01:17 PM.
Old 12-03-2012, 02:23 AM   #3
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ll /etc |grep cron
-rw-r--r--.  1 root root    541 Jul 19  2011 anacrontab
drwxr-xr-x.  2 root root   4096 Nov 21 10:45 cron.d
drwxr-xr-x.  2 root root   4096 Nov 27 11:39 cron.daily
-rw-r--r--.  1 root root      0 Jul 19  2011 cron.deny
drwxr-xr-x.  2 root root   4096 Nov 21 10:46 cron.hourly
drwxr-xr-x.  2 root root   4096 Nov 21 10:45 cron.monthly
-rw-r--r--.  1 root root    457 Sep 27  2011 crontab
drwxr-xr-x.  2 root root   4096 Sep 27  2011 cron.weekly

In any case, those should really only be used for system cronjobs.
For individual user's cronjobs (inc root), use
crontab -e


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