gnome-sushi software package provides sushi is a quick previewer for nautilus, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnome-sushi
gnome-sushi is installed in your system.
Make ensure the gnome-sushi package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-sushi *
You will get with gnome-sushi package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | GNOME |
| Package | gnome-sushi |
| Version | 3.11.90-0ubuntu1 |
| Description | sushi is a quick previewer for nautilus |
| Sub Section | GNOME |