Terminal Command to get the list of available shells in macOS

If you want to know the list of available shells on your macOS (Catalina, Mojave, Big Sur) you can try the command cat /etc/shells, this will print list of all shells that are available,

mac:~ code2care$ cat /etc/shells
# List of acceptable shells for chpass(1).
# Ftpd will not allow users to connect who are not using
# one of these shells.

/bin/bash
/bin/csh
/bin/dash
/bin/ksh
/bin/sh
/bin/tcsh
/bin/zsh

✏️ Z Shell (Zsh) is the default. shell shipped since macOS Catalina and BigSur

How to switch between shells in macOS?

Simply type the shell name on the prompt.

code2care@mac ~ % bash

The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s /bin/zsh`.
For more details, please visit https://support.apple.com/kb/HT208050.

bash-3.2$ csh

[mac:~] code2care% dash

$ ksh

$ sh

sh-3.2$ tcsh

[mac:~] code2care% zsh

code2care@mac ~ %