Cask

To install cask at the terminal type

brew install cask

To get help or additional information about a utility you want to install on your mac type:

brew cask help

To search for a list of casks to install type:

brew search --casks

This will display a list with hundreds of casks(applications) that are available to install on your mac. For example I can search for a cask called 'discord' from the list by typing:

brew search discord

If I want to install discord I can type:

brew cask install discord

This will download this package and install it on my machine. I can then open spotlight by pressing cmd + spacebar and search for 'discord' and it will appear in a list.

To update every application that is installed by using cask I can type:

brew cask upgrade