$ sudo npm install sass
$ sudo npm install -g sass

If want to update the sass package execute the command as below,

$ sudo npm update sass

Update package globally,

$ npm install -g sass

Git clone:

$ sudo  git clone https://github.com/rektide/sass.git

$ sudo  npm install -g ./sass

sass@1.0.0-beta.3 /usr/lib/node_modules/sass

How to remove sass package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall sass

Basic Information of sass NPM Package: