Hands-on
Practice terminal
A shell you can actually type into. It runs the commands from the Linux course against a simulated filesystem — so you can try things, break things, and see real-shaped output. Nothing here touches a real machine; experiment freely.
Practice shell — nothing here is real. Type 'help' to begin.
Start with help. Then try ls, cd projects, cat notes.txt, grep TODO notes.txt, and redirection: echo "a new line" >> notes.txt. Use the up arrow to recall a previous command.