minix man page for cron

Query: cron

OS: minix

Section: 8

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

CRON(8) 						      System Manager's Manual							   CRON(8)

NAME
cron - clock daemon
SYNOPSIS
cron
EXAMPLES
/usr/bin/cron # Use absolute path in /etc/rc
DESCRIPTION
Cron is clock daemon. It is typically started up by including the command /usr/bin/cron in the /etc/rc file. Once started, cron puts itself in the background, so no & is needed. It runs forever, sleeping most of the time. Once a minute it wakes up and examines /usr/lib/crontab to see if there is any work to do. If there is, the work is done. The entries of /usr/lib/crontab contain 6 elements each. Some examples follow: Min Hr Dat Mo DayCommand * * * * * /usr/bin/date >/dev/log #print date every minute 0 * * * * /usr/bin/date >/dev/log #print date on the hour 30 4 * * 1-5 /bin/backup /dev/fd1 #do backup Mon-Fri at 0430 30 19 * * 1,3,5 /etc/backup /dev/fd1 #Mon, Wed, Fri at 1930 0 9 25 12 * /usr/bin/sing >/dev/log #Xmas morning at 0900 only
SEE ALSO
at(1). CRON(8)
Related Man Pages
crond(8) - redhat
cron(8) - plan9
cron(8) - netbsd
cron(1m) - x11r4
cron(1m) - php
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