Filelight is a little program that analyses your hard drive and shows the Disk Usage in Graphically, It Shows how much space each folder is taking up. Some large temporary files and used iso files will eat your harddisk space. You can easily find which folder is the culprit.
it's a very good graphical program that helps you look at and understand how much space different files and folders are taking up on your hard disk.
$ sudo apt-get install filelight or you can use synaptic package manager
