[Koha] Crontab - is that one tabs used to open beer cans?

My new version of koha 3.14 is up and working. I was just looking at the crontab jobs and I didn't find anything in there. I used sudo crontab -e to open crontab.

From the old version of koha, there were several contrab jobs - exporting Perl, running fines.pl etc.

Are these jobs automatically put into crontab or do I have to put the jobs into crontab myself. Does anyone have a good example of the koha crontab jobs that should be in the crontab? Thanks, Phillip