gnome-packagekit software package provides Graphical distribution neutral software manager, 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-packagekit
gnome-packagekit is installed in your system.
Make ensure the gnome-packagekit package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-packagekit *
You will get with gnome-packagekit package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | GNOME |
| Package | gnome-packagekit |
| Version | 3.8.2-4ubuntu1 |
| Description | Graphical distribution neutral software manager |
| Sub Section | GNOME |