Cron job configuration on Solaris

### system scheduler -cron ##



1- permits recurring execution of tasks/scripts
2- permits one-time execution of tasks via 'at' command
3- logs results of executed tasks
4- restrictions/permissions via cron.deny, cron.allow,at.*



location: /var/spool/cron

/var/spool/cron/crontabs  - recurring jobs  - %username% folder for each user
/var/spool/cron/atjobs  - one-time jobs

crontab columns:

m(0-59) h(0-23) dom(1-31) m(1-12) dow(0-6) command

examples

10 3 * * *   - every day at 3:10
* * * * *   - every minute
*/5 * * * *  - every 5 min
1 0-4 * * * *  - 1 minute after hours 0-4
0 0,2,4,6 * * *  - top of the hours 0,2,4,6