What is HomeBrew
Homebrew is the missing package manager for macOS. You can use Homebrew to install command line packages on a Mac, provided someone has written a formulae, which is a simple Ruby script that walks through the process for installing all the little bits required for a piece of software.
bash /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Once the installation has finished, excute the following command for checking your HomeBrew version.
bash brew --version
How to install a package
bash brew install wget
New versions of Homebrew come out frequently, so make sure you update it before updating any of the other software components that you’ve installed using Homebrew.
bash brew update
To uninstall Homebrew, execute the command below in a terminal prompt.
bash ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"