filelight software package provides show where your diskspace is being used, 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 filelight
filelight is installed in your system.
Make ensure the filelight package were installed using the commands given below,
$ sudo dpkg-query -l | grep filelight *
You will get with filelight package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | KDE |
| Package | filelight |
| Version | 4:4.13.0-0ubuntu1 |
| Description | show where your diskspace is being used |
| Sub Section | KDE |