Tools

An interactive process viewer and system monitor.

A customizable cross-platform graphical process/system monitor.

A modern replacement for ps written in Rust.

A more intuitive version of du in Rust.

Disk Usage/Free Utility with a nice output.

NCurses disk usage analyzer with an interactive interface.

List open files and the processes that opened them.

Run a command with a time limit. Part of GNU coreutils: built into Linux, 'gtimeout' on macOS after brew install coreutils.