Terminal simulator
A free-form sandbox terminal to practice in — no tasks, no grading. Try any command; there is nothing you can break. Not sure what's available? Type help or open the command cheat sheet.
Ready-made practice scenarios:
terminal
A safe terminal sandbox. Type a command and press Enter.
Not sure what’s available? Type help.
~ $
Files
~ — current folder
The link recreates the terminal's current files — handy for sharing a task or an example.
Tab complete · ↑ history · Ctrl+R search · history · man ls · Ctrl+L clear
Want a guided path instead? The free Terminal Basics course teaches these commands one at a time, and the command-line challenges give you tasks to solve here.