gt5 software package provides shell program to display visual disk usage with navigation, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gt5
gt5 is installed in your system.
Make ensure the gt5 package were installed using the commands given below,
$ sudo dpkg-query -l | grep gt5 *
You will get with gt5 package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Utilities |
| Package | gt5 |
| Version | 1.5.0~20111220+bzr29-1 |
| Description | shell program to display visual disk usage with navigation |
| Sub Section | utils |