Example crontab

The following are a few examples of the crontab command:
• Use the following command to run a script every 5 minutes, every day:

5 * * * * $HOME/bin/daily.job >> $HOME/tmp/out 2>&1
• Use the following command to run 5 minutes after midnight every day:
5 0 * * * $HOME/bin/daily.job >> $HOME/tmp/out 2>&1
• Use the following command to run at 2.15 P.M. on the first of every
month—the output is mailed to Paul:

15 14 1 * * * $HOME/bin/monthly
• Use the following command to run at 10 P.M. on weekdays, send the
e-mail to
ganesh@abc.com:
0 22 * * 1-5 sendmail ganesh@abc.com < ~/work/email.txt
• The sendmail utility is used for sending e-mails. We can use the mail utility
also as follows:

sendmail user@example.com < /tmp/email.txt
• The following commands are self-explanatory from text of echo:
23 0-23/2 * * * echo "run 23 minutes after midn, 2 am, 4 am,
everyday
5 4 * * sun echo "run at 5 after 4 every Sunday"

The following are a few more crontab command examples:
 

Min Hour Day / month Month Day / week Execution time
45 0 5 1,6,12 * 00:45 hrs on the 5th
of January, June, and
December.
0 18 * 10 1-5 6.00 P.M. every weekday
(Monday-Friday) only in
October.
0 0 1,10,15 * * Midnight on the 1st ,10th,
and 15
th of the month
5,10 0 10 * 1 At 12.05 and 12.10 every
Monday and on the 10
th
of every