Scheduling Processes

• System processes use the cron and anacron capabilities to invokes processes and scripts maintained in periodic directories:

/etc/cron.hourly (not used by anacron)

/etc/cron.daily }

/etc/cron.weekly } anacron

/etc/cron.monthly }

• Access to the cron and at systems can be managed

• /etc/cron.allow and /etc/cron.deny control access to the cron system
• /etc/at.allow and /etc/at.deny control access to the at commands at, batch, atq, and atr