ps aux | grep "cron"
root 7810 0.0 0.1 23848 1060 ? Ss Feb06 0:00 /usr/sbin/cron
root 26328 0.0 0.0 8968 864 pts/0 S+ 10:54 0:00 grep cron
In /etc/crontab :
# m h dom mon dow user command
3 * * * * root cd / && run-parts --report /etc/cron.hourly
6 1 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
35 1 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
16 5 11 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
#
/usr/sbin/anacron file owner is root with permissions 755
/etc/anacrontab content:
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# These replace cron's entries
1 5 cron.daily nice run-parts --report /etc/cron.daily
7 10 cron.weekly nice run-parts --report /etc/cron.weekly
@monthly 15 cron.monthly nice run-parts --report /etc/cron.monthly