Re: Unable to set cronjob in Fedora 16
I prefer to keep a copy of the crontab entries. Then I can edit that at will (and leave in the middle if called away). Use any editor you want.
The use "crontab <file" to load it. Now you have a backup of the active file - in case something goes off that shouldn't (such as an accidental fork bomb, causing the admin to delete the crontab file from the system).
As another suggestion, I keep the entries simple in the crontab file. I use references to scripts for things that have two (or more) commands. This allows me to edit the script (and test them) before being put in the active crontab list.