A surprising number of folks use [Zsh](https://www.zsh.org/) and [Oh My Zsh](https://ohmyz.sh/) without really knowing why or what it is. Probably because OSX uses zsh as the default shell now.
This is a real shame because Oh My Zsh has a lot of [great plugins](https://github.com/ohmyzsh/ohmyzsh/wiki/Plugins) for common tasks, for example loads of useful [git aliases](https://kapeli.com/cheat_sheets/Oh-My-Zsh_Git.docset/Contents/Resources/Documents/index) are available by default.
If you're using [Zsh](https://www.zsh.org/) its well worth a look at what you might be missing out on. :)