to make it more specific, I created a directory called /backups it has a subdirectories named after each user. (user1, user2, user3). Now, each users will copy all their files that they need to backup on their respected folders. How can I automatically split and tar the files even if without knowing the name of the file?

I'm getting the point of your input. but I'm in need of a script which can automatically do the split and tar things. I know cron will do the automated job. My biggest problem is the script itself.

Sorry for being noob here and I hope you'll understand my situation.

Thank you,