$ shelllab

Learn the shell. Then put AI to work in it.

ShellLab is a pocket guide to 52 Linux and Unix commands, with a quiz, a place to swap tips, and a look at how AI tools fit into the command line.

Browse the commands Take the quiz
guest@shelllab: ~ (simulated)
Welcome to the ShellLab practice shell. Type help and press Enter.

Command of the day

sudo

Permissions & Users

Run one command with administrator (root) privileges.

sudo apt update

Syntax: sudo command

What you can do here

Search the commands

Filter by name or category, see the syntax, and copy a working example.

See where AI fits

GPUs, local models, JSON APIs, and how to check a command before you trust it.

Test yourself

Five random questions from a bank of 14. Your score can join the leaderboard.