Tracking down where disk space has gone on Linux?

[Sumisu]

Try ncdu, an excellent command-line disk usage analyser:

sudo apt install ncdu

You quite probably know which filesystem is short of space. In which case you can use ncdu -x to only count files and directories on the same filesystem as the directory being scanned. – Luke Cousins Jul 21, 2017 at 11:51

best answer. also: sudo ncdu -rx / should give a clean read on biggest dirs/files ONLY on root area drive. (-r = read-only, -x = stay on same filesystem (meaning: do not traverse other filesystem mounts) ) – B. Shea Sep 21, 2017 at 15:52