Last updated July 19, 2026
Use the shell with care.
Daily Shell is an educational practice tool. Its simulated terminal does not execute commands on your computer or server.
Educational use
Lessons are designed to build understanding, not to replace review of documentation, backups, access controls, or professional operational judgment.
Your responsibility
Commands can behave differently across systems and may modify or delete real data when used outside this simulation. Verify the machine, working directory, command, permissions, and recovery path before running commands in a real terminal.
Accounts
You are responsible for the Google account used to sign in. Do not attempt to access another person’s profile or interfere with the service.
Availability
The service may change, pause, or lose availability. Keep independent copies of any field notes you cannot afford to lose.
No warranty
Daily Shell is provided as-is without a guarantee that every lesson fits every Linux distribution, configuration, or production environment.