cron and anacron

[david david <dbplists@gmail.com>]

I'm confused between anacron and cron.  I've got a vanilla woody
install and there appears to be some anacron statements in
/etc/crontab.  Does that mean I need to install anacron to get the
entries in /etc/cron.daily, weekly and monthly to run?

$cat /etc/crontab

SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

# m h dom mon dow user  command
25 6    * * *   root    test -e /usr/sbin/anacron || run-parts
--report /etc/cron.daily
47 6    * * 7   root    test -e /usr/sbin/anacron || run-parts
--report /etc/cron.weekly
52 6    1 * *   root    test -e /usr/sbin/anacron || run-parts
--report /etc/cron.monthly
#

Thanks,
dbp