A short cron jobs reference

cronjob.md

Cron jobs (UNIX)

Syntaxis

.---------------- Minutes (0 - 59)
|  .------------- Hour (0 - 23)
|  |  .---------- Day (1 - 31)
|  |  |  .------- Month (1 - 12) of januari, februari, maart...
|  |  |  |  .---- Day of the week (0 - 6) (Sunday = 0 or 7)
|  |  |  |  |
*  *  *  *  *  Executed command

Special options

Command	Description	Compares with
@reboot	Runs when booting the system.	Nothing
@yearly	Runs once a year.	0 0 1 1 *
@annually	Runs once a year.	0 0 1 1 *
@montly	Runs once a month.	0 0 1 * *
@weekly	Runs once a week.	0 0 * * 0
@daily	Runs once a day.	0 0 * * *
@midnight	Runs at midnight.	0 0 * * *
@hourly	Runs once an hour.	0 * * * *