At command type:- crontab -e (which means we are creating a new cron) i take it you know how to use VI editor, once in the new cron you can add something like:
00 05 * * /whereeva script is/test
then exit out and type at command prompt crontab -l (which lists the jobs)
00 is the minutes set too
05 is the hour set too
* is day set too
* is month set too
/where....... is the directory of where the script is
I hope this helps???
Gavin