What is CRON jobs ?
What does it do?

cron is a unix process that lets you run commands or scripts at specific times on specific days.

For example, run a web statistics script everyday at midnight.

Frank

Hi!
This site may be of some help to you... :)

http://www.aota.net/Script_Installation_Tips/cronhelp.php4

Have a great day :)

regards
amar