It's a front-end for the command line tool rsync and makes backing up very easy and convenient for recent linux converts like me. You can backup to another hard drive, a partition or to removable media. I have chosen to backup to my /backup partition. I made a folder named Grsync backups. For directories that one wants to exclude from backup, you can simply create a text file called for eg. 'exclude' in ~/.grsync (Select 'Show Hidden Files' from the menu to see it), and type in the directories to be excluded. For example:- .rnd .dbus .VirtualBox Videos Music Then save the file. In the 'Additional Options' field under the 'Advanced Options' tab of Grsync enter:- --exclude-from=".grsync/exclude" in order for the exclude file created earlier to be referenced by Grsync. The other options are sort of self-explanatory, although I must admit never having bothered with the 'Extra Options' tab. The 'Basic Options' tab is the important one. My gif shows the boxes I have ticked. When ready run a simulation backup and if all's OK run the actual backup. Grsync is in Ubuntu's Synaptic - make sure you install rsync as well-it is needed by Grsync. All this can of course be found by a bit of googling, but I thought I'd put it in a nutshell.