Introduction to Linux
A starter cheatsheet for working in a shell. Terminal controls, file management, permissions, process inspection, services, and the small set of commands you'll reach for daily. Written for someone moving from a GUI-only OS.
A 2020 cheatsheet I built while moving most of my workflow into a Linux shell. Terminal controls, file navigation, permissions math (r=4 w=2 x=1), process inspection, and systemctl.
If you live in a terminal already this won't teach you anything new. If you're moving from a GUI-only environment, the original on Medium is a reasonable place to start.