How to Tell What Shell Your Mac is Using

  Matt Cone       January 22, 2021      Tutorials Mac Developer


Every Mac comes with a Unix shell that provides a command line interface. Macs running macOS 10.15 and later use Zsh by default. Before that, Macs used the Bash shell by default. Of course, no matter what version of macOS you’re using, you can change the shell your Mac is using.

What shell is your Mac using? There’s an easy way to tell — here’s how.

  1. Open the Terminal application on your Mac.

  2. At the prompt, type echo $0, as shown below.

    How to tell what shell your Mac is using

The name of the shell the Mac is using is displayed in the output.

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