Using FreeBSD 9, I would like to know what is the good way to split /etc/crontab into several files.
For example, I would like to put all postfix related jobs in /etc/cron.d/postfix, all logrotate related jobs in /etc/cron.d/logrotate and so on.
Of course, I could use periodic, but it seems that all the jobs would be executed around the same time.
According to man 1 cron, it searches /var/cron/tabs/< usernames> and for /etc/crontab.
Edit 1 : Reasons why I may want to try to do so, as asked in voretaq7's answer.
Some company uses poor home-made scm that has no cron plugin nor augeas tool.
Writting some scripts that installs some 3rd party software : Appending jobs at the end of /etc/crontab is dirty.
Note that /etc/rc.conf and /usr/local/etc/sudoers already have this feature, therefore I was wondering if there was a "FreeBSD way" to do this for scheduled jobs.