I read [this doc of gparted](http://gparted.org/display-doc.php?name=help-manual&lang=C#gparted-fix-grub-boot-problem) to recover from booting issues when a partition is moved.
To test the command `grub` on gparted terminal, I want to open the terminal but not finding a way from my Ubuntu 13.04.
When I run `sudo gparted &` on my shell terminal, it opens GUI and so I can't test the commands. How to open the terminal?