cron(1) - phpMan

anacrontab (5)       - configuration file for Anacron
anacron (8)          - runs commands periodically
cron (8)             - daemon to execute scheduled commands
crond (8)            - daemon to execute scheduled commands
crontab (1)          - maintains crontab files for individual users
crontab (1p)         - schedule periodic background work
crontab (5)          - files used to schedule the execution of programs
crontabs (4)         - configuration and scripts for running periodical jobs