My wife's computer runs 12.04 from a SSD. She keeps her data files on a hdd on the computer and periodically backs them up to a desktop USB drive which she plugs in to do the backup.
There are data files on the USB drive that do not exist on the hdd, and these need to be retained.
I would like to know a simple script (or program) that would allow her to plug in her USB drive, then click on an icon on her desktop (or something equally simple), and back up all the new and changed files since the last backup. Ideally, the switches (this probably isn't the right word) on the files will be set each backup so that she does not have to keep track of when she last backed up. Thanks.