OnCallReady

Commands

uname - print system information

uname [-a] [-s] [-r] [-m] [-n]

Options you will use

-a, --all
Print everything: kernel, hostname, release, version, machine, OS.
-s
Kernel name (Linux).
-r
Kernel release (7.0.0-31-generic).
-m
Machine hardware name. aarch64 here - Apple Silicon, arm64.
-n
Network node hostname.

Taught in

Try uname in a real terminal Free, in your browser - a real Ubuntu terminal to try it in, with missions that check your work.