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What is the terminal, and how do I use it?

The terminal is a window where you type instructions to your computer instead of clicking. How to open it on a Mac or Windows, paste a command, and stay safe.

By Nick

1 min read

AI Basics Beginner
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The terminal is a window where you type instructions to your computer instead of clicking on things. Every Mac and Windows computer already has one. It looks bare: a blank window and a blinking cursor.

Some AI tools, like Claude Code, and anything you run on a rented server, are used this way. You don’t need to learn it. You copy a line from a guide, paste it in, and press Enter.

Open it

  • Mac: press Command and Space together, type Terminal, press Enter.
  • Windows: click Start, type Terminal, and click the app called Terminal.

Run a command

  1. Copy the line from the guide (the grey boxes on this site have a Copy button).
  2. Click in the terminal window and paste: Command and V on a Mac, Ctrl and V on Windows (or right-click).
  3. Press Enter.

Text appears as it works. When the blinking cursor comes back on a new line, it has finished. If something seems stuck, Ctrl and C stops it.

Stay safe

Pressing Enter does what the line says, so only run commands from a guide or a person you trust. If someone you don’t know sends you a command to “fix” something, don’t run it.

Try one now. This just prints the date:

date

Common questions

Can I break my computer by typing in it?

Typing is harmless. Pressing Enter runs the line, so only run commands from a guide or a person you trust, and don't run anything you were sent out of the blue.

Do I need to learn programming?

No. For the guides on this site you copy a line, paste it and press Enter. That's the whole skill.

Is Command Prompt or PowerShell the same thing?

Close enough. On Windows, Terminal, PowerShell and Command Prompt are all text windows for commands. Use Terminal if you have it.

Related reading

Last reviewed 14 October 2026 by Nick.

Software changes fast. If something here is out of date, tell me and I'll fix it.

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