Find those big files!
ncdu is TUI program to generate and view usage statistics for disk space from the current directory and below. Use -x to avoid crossing filesystem boundaries and disable file modification with -r. ionice will give ncdu less I/O priority.
ionice ncdu -x -r
@zleap Yes. There's CLI and TUI. CLI basically means you're looking at a shell prompt, while TUI means there's a whole interface built within the terminal (think vim).