What is the difference between brew install XXX and brew cask install XXX

Question

I\'m familiarizing myself with the whole homebrew kit and the documentation is rather poor. What is a cask, Cellar and a tap?

Answer 1

Quoting from official docs:

Cask

https://github.com/Homebrew/homebrew-cask

Homebrew Cask extends Homebrew and brings its elegance, simplicity, and speed to the installation and management of GUI macOS applications such as Atom and Google Chrome.

Cellar

https://docs.brew.sh/Formula-Cookbook

Homebrew installs to the Cellar and then symlinks some of the installation into /usr/local so that other programs can see what’s going on.

Tap

https://docs.brew.sh/Taps

Taps (Third-Party Repositories)

brew tap adds more repositories to the list of formulae that brew tracks, updates, and installs from. By default, tap assumes that the repositories come from GitHub, but the command isn’t limited to any one location.