A line in crontab file like below removes the tmp files from /home/someuser/tmp each day at 6:30 PM.
30 18 * * * rm /home/someuser/tmp/*
Changing the parameter values as below will cause this command to run at different time schedule below :
|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|
Note : If you inadvertently enter the crontab command with no argument(s), do not attempt to get out with Control-d. This removes all entries in your crontab file. Instead, exit with Control-c.