This just IN !!!
If you have WHM Xtra you can edit /etc/crontab (from the 'browser' link), and input all your crons from there.. not using shell at all.
Thought I'd throw that in.
Another thing, for everyone ............... no need to hammer on anyone. It's all a learning curve, not just for the initial person that asked the question but perhaps later when someone does a search. You can have hundreds of people read the same paragraph and ultimately you WILL get different responses, I just lucked out on this because I knew what you were asking from point one, but decided to take you to the logical step of shell,.......... then thought about it later and realized.... YOU CAN do this in WHM but only if you have WHM Xtra.
That's just my 2 cents.
We are all learning, and should try to do so, each day.