Difference between revisions of "Crontab"

From Linuxintro
imported>ThorstenStaerk
(examples)
imported>ThorstenStaerk
 
Line 16: Line 16:
  
 
= See also =
 
= See also =
* [http://man-wiki.net/index.php/5:crontab crontab's man page]
+
* [http://www.manpagez.com/man/5/crontab/ crontab's man page]

Latest revision as of 08:44, 24 April 2014

crontab is a configuration file in the /etc folder that tells the cron daemon when to perform what commands. It can look like this:

# Sample crontab file

*/10 * * * * fetchmail -p pop3 -u 612696 -v pop.gmx.net

A line starting with a # is a comment. The other line in this example follows the form

<minute> <hour> <day of month> <month> <day of week> [user] <command>

where [user] is optional.

Examples

Run the command fetchmail every day at 10 minutes past 1:

10 1 * * * fetchmail

Run the command fetchmail every day and hour at 10 minutes past the hour:

10 * * * * fetchmail

Run the command fetchmail every 10 minutes:

*/10 * * * * fetchmail

See also