Do you manage a Linux server? Do you need to figure out where it’s disk space is being eaten up? If you have SSH access the tool ncdu may be for you.
NCDU is a minimal GUI that scans folders and files and then visualizes sizes helping you locate bloat quickly. You can even perform delete actions right from within NCDU.
From the author:
Ncdu is a disk usage analyzer with an ncurses interface. It is designed to find space hogs on a remote server where you don’t have an entire graphical setup available, but it is a useful tool even on regular desktop systems. Ncdu aims to be fast, simple and easy to use, and should be able to run in any minimal POSIX-like environment with ncurses installed.
in Debian you can install with apt:
apt-get install ncdu -s