Linux command for deleting files after x number of days

[USAMustangs.com]

Hello.

I'm using a .php script that automatically performs a full cPanel backup via cron job. Space will become an issue real quick with these daily backups dumping into my root. I'm not using the ftp option to move them elsewhere at this time.

I would like to set up a cron job in cPanel to automatically delete all cPanel backups that are 3 days old or older.

Is this the correct command to do so or am I completely off base? If so, what is the correct command to work on cPanel 11 over Linux?

find /home/user/backup-* -mtime +3 -exec rm {}\;

The typical full backup reads like this /home/user/backup-2.4.2009_18-11-01_user.tar.gz I'm assuming the backup-* wildcard is correct usage as well.

Thanks.