CRON(1M) DOMAIN/IX Reference Manual (SYS5) CRON(1M)
NAME
cron - clock daemon
USAGE
/etc/cron
DESCRIPTION
Cron executes commands at the dates and times specified in
/usr/lib/cron/crontab. You can run a command periodically
by placing it in the crontab file, using the format
described there. Use the at(1) command if you want to run a
command only once, at a later time.
Since cron never exits, it should only be executed once. It
is usually executed at initialization, possibly in a start-
up script, by invoking the Display Manager command cps, as
shown below.
cps /etc/cron
Cron examines crontab files and at command files only during
process initialization and when the file changes.
NOTES
The process created by /etc/cron will automatically be named
cron.
FILES
/usr/lib/cron main cron directory
/usr/lib/cron/log accounting information
/usr/spool/cron spool area
DIAGNOSTICS
Cron records all its actions in /usr/lib/cron/log.
RELATED INFORMATION
at(1), sh(1)
Printed 5/10/85 CRON-1