Hello Linux Geeksters. As you may know, Gnome Sushi is a tool that allows the have quick previews of files, from the Nautilus file manager. Just select the file and press the Space bar, to get a preview. Sushi works well with both Unity and Gnome Shell, and it is file manager independent, so it can be used with other file manager than Nautilus, like Nemo or Dolphin.

In this article I will show you how to install Sushi on Ubuntu 13.10 Saucy Salamander, Ubuntu 13.04 Raring Ringtail, Ubuntu 12.10 Quantal Quetzal and Ubuntu 12.04 Precise Pangolin.
Because Sushi is available in the default repositories, to install it on Ubuntu just do:
$ sudo apt-get update
$ sudo apt-get install gnome-sushi
$ nautilus -q