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linux:misc:cron:configuring_schedule

Configuring cron task schedule

crontab -e
* * * * * task
Fields
* * * * * /path/to/task
minute hour day of month month day of week full path to command
0-59 0-23 1-31 1-12
JAN-DEC
0-6
SUN-SAT
7 (Non-standard)
can be binary, or any script
Legend
option Description
* Any value
, Value list separator
- Range of values
/ Step values
@yearly Non-standard
@annually Non-standard
@monthly Non-standard
@weekly Non-standard
@daily Non-standard
@hourly Non-standard
@reboot Non-standard
Examples
Schedule Description
every minute * * * * *
every even minute */2 * * * *
every odd minute 1-59/2 * * * *
every 10 minutes */10 * * * *
every quarter hour */15 * * * *
every half hour */30 * * * *
every hour at 30 minutes 30 * * * *
every hour 0 * * * *
every even hour 0 */2 * * *
every odd hour 0 1-23/2 * * *
every 6 hours 0 */6 * * *
every 8 hours 0 */8 * * *
every 12 hours 0 */12 * * *
every midnight 0 0 * * *
every day at 01:00 0 1 * * *
every midnight on sunday 0 0 * * SUN
every midnight on monday 0 0 * * MON
every midnight on tuesday 0 0 * * TUE
every midnight on wednesday 0 0 * * WED
every midnight on thursday 0 0 * * THU
every midnight on friday 0 0 * * FRI
every midnight on saturday 0 0 * * SAT
every midnight on weekday 0 0 * * 1-5
every month on first day at midnight 0 0 1 * *
every even month on first day at midnight 0 0 1 */2 *
every odd month on first day at midnight 0 0 1 1-12/2 *
every quarter on first day at midnight 0 0 1 */3 *
every 6 months on first day at midnight 0 0 1 */6 *
every new year 0 0 1 1 *
linux/misc/cron/configuring_schedule.txt · Last modified: 2018/07/25 15:39 by tplecko