bleachbit software package provides delete unnecessary files from the system, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bleachbit
bleachbit is installed in your system.
Make ensure the bleachbit package were installed using the commands given below,
$ sudo dpkg-query -l | grep bleachbit *
You will get with bleachbit package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Administration Utilities |
| Package | bleachbit |
| Version | 0.9.1-1 |
| Description | delete unnecessary files from the system |
| Sub Section | Admin |