CRON(8) CRON(8) (NAME) crond - (SYNOPSIS) crond [-c | -h | -i | -n | -p | -P | -s | -m<>] crond -x [ext,sch,proc,pars,load,misc,test,bit] crond -V (DESCRIPTION) sysvinit Cron /etc/rc.d/init.d /etc/init.d . systemd (unit file) /lib/systemd/system/crond.service systemctl start crond.service . '&' . Cron /var/spool/cron crontab /etc/passwd crontab . Cron /etc/anacrontab /etc/cron.d ( crontab(5)). Cron crontab . crontab ( MAILTO crontab ) . -s syslog . crontab . (modtime) . inotify . inotify /var/log/cron . inotify crontab . modtime Cron crontab . crontab Cron . inotify modtime . Cron : /etc/crontab crontab . . . anacron /etc/anacrontab . anacrontab(5) . /etc/cron.d/ (cronjobs) . /var/spool/cron crontab crontab . crontab(1) crontab (modtime) spool . (Daylight Saving Time) . . . . . . crontab . crontab(5) . PAM PAM Cron PAM . pam(8) . PAM crond /etc/pam.d/crond . PAM pam_env . crontab . (OPTIONS) -h . -i inotify. -m sendmail(8) Cron . ( ) . off ( : crond -m off) . -n (foreground) . init . pam /etc/pam.d/crond pam_loginuid.so . -f -n crond. -p Cron crontab . -P PATH PATH . -c (clustering) . -s Cron syslog(3) . sendmail(8) . -x (debug) . -V . (SIGNALS) SIGHUP Cron . (rotate age) . Cron syslog(3) . (CLUSTERING SUPPORT) Cron /var/spool/cron (cluster of hosts) crontab . Cron -c /var/spool/cron/.cron.hostname (hostname) . gethostname(2) crontab . cron /etc/crontab /etc/cron.d . . /var/spool/cron/.cron.hostname -n crontab(1) . crontab (mount) ( ntpd(8)) . inotify inotify . (CAVEATS) crontab (symlink) . -p crond . inotify crontab cron . cron SIGHUP crontab . (API) inotify . sendmail syslog . (SEE ALSO) crontab(1), crontab(5), inotify(7), pam(8) (AUTHORS) Paul Vixie Marcela Maslanova Colin Dean Tomas Mraz cronie 2013-09-26 CRON(8)