Now, as beautiful and as highly functional as your Mac GUI is, under the hood there is a truly powerful workhorse OS (Operating System) which can give you access to hundreds of thousands of native UNIX applications!
The only catch being, that in order to install and run all of this amazing UNIX software goodness, you will need to install a package manager to setup and store all of the UNIX components (packages), that are needed to run the applications.
To get to the terminal on your Mac, you can launch Spotlight and just start typing TERMINAL and it will appear, click to launch.
Open your applications folder and navigate to the UTILITIES folder, TERMINAL will be located there.
Once TERMINAL is open, you can install Homebrew by typing (or cut & paste) the command below into the terminal window and then hit enter.
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)”
Once you have successfully installed Homebrew, your Mac is now ready to install and run some UNIX applications!