Crontab Tutorial - Tips & Shortcuts

*/5 * * * * /command

The above is an example of a command that runs every 5 minutes.
Normally instead if the "*/5" you'd have to type
"5,10,15,20,25,30,35,40,45,50,55" etc...

You can use it to run a program every 5 days, 5 months 5 years etc...

Crontab run one a day at a certain time

[code:1:7a3bd32dfa]0 1 * * * /home/backupguy/databackup.sh[/code:1:7a3bd32dfa]

This will run the script every day at 1AM

[quote:7a3bd32dfa]min hour day/month month day/week[/quote:7a3bd32dfa]

More Crontab examples

[quote:100a5ac681]min hour day/month month day/week Execution time
30 0 1 1,6,12 * -- 00:30 Hrs on 1st of Jan, June & Dec.

:
0 20 * 10 1-5 --8.00 PM every weekday (Mon-Fri) only in Oct.

:
0 0 1,10,15 * * -- midnight on 1st ,10th & 15th of month

:
5,10 0 10 * 1 -- At 12.05,12.10 every Monday & on 10th of every month[/quote:100a5ac681]