Here is the ls output of my /bin directory:
[csh ksh zsh bash dash tcsh sh ...]
Prior to catalina bash was the default and now zsh is default. What's the usage of others?
Why so many shell in /bin
catalinacommand lineterminal
Related Question
- Terminal Bash Vs Zsh – Comparing Practical Differences For Catalina Users
- macOS – Impossible to Redirect Subprocess stderr on macOS
- Catalina – Suppressing ‘Default Interactive Shell is now zsh’ Message on MacOS
- Terminal Command Line Bash – Fix Terminal.app Changing Shell Behavior Problem
- Can’t use zsh shell in Catalina
- MacOS catalina ignores shell in AD and uses zsh instead
- Now that MacOS Catalina has moved to zsh, can I upgrade bash 3.2.57 with 5.0.3
- ITerm2, zsh and .zshhistory – how to have separate zsh history
Best Answer
There are a lot of different shells available for Unix-like systems, and different users have different preferences. So on most Unix systems you'll find some of the most often used shells installed, to give users a choice in using whatever they prefer.
For more information about the differences between various shells see:
The default shell is just the shell newly created user accounts get assigned as a default shell. This can easily be changed by using
chshor changing the entry in the Users & Groups preference pane. And it's worth nothing that the default shell of existing user accounts will not be changed during the upgrade to Catalina.