$ sudo npm install gulp-uncss
$ sudo npm install -g gulp-uncss

If want to update the gulp-uncss package execute the command as below,

$ sudo npm update gulp-uncss

Update package globally,

$ npm install -g gulp-uncss

Git clone:

$ sudo  git clone https://github.com/rektide/gulp-uncss.git

$ sudo  npm install -g ./gulp-uncss

gulp-uncss@1.0.6 /usr/lib/node_modules/gulp-uncss

How to remove gulp-uncss package :

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

$ sudo npm uninstall gulp-uncss

Basic Information of gulp-uncss NPM Package: