Playground

Bash & the Shell playground

How the sandbox works, and its honest limits, is on the code execution and security page.

just-bash 3.4.2 (simulated shell, not a real system bash)

Ctrl/Cmd+Enter to run

Press Esc then Tab to move keyboard focus out of the code editor.

stdin (one value per line, read by read)

Ready

Output will appear here after you run your code.

Not sure what to type?

A blank editor is the hard place to start. The Bash & the Shell exercises hand you a program that already runs and ask you to change one thing.