Once you have Ruby installed, installing Sass is a breeze. Head on over to https://sass-lang.com/install and follow the directions.

Just like you can get the version of Ruby by running $ ruby -v at your Terminal or command line, you can do the same thing with Sass. Execute this following command, $ sass -v, to see what version of Sass you have on your system at your Terminal or command line. The output on my system shows the following:

Sass 3.5.5 (Bleeding Edge).