$ sudo npm install gulp-postcss
$ sudo npm install -g gulp-postcss

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

$ sudo npm update gulp-postcss

Update package globally,

$ npm install -g gulp-postcss

Git clone:

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

$ sudo  npm install -g ./gulp-postcss

gulp-postcss@7.0.0 /usr/lib/node_modules/gulp-postcss

How to remove gulp-postcss package :

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

$ sudo npm uninstall gulp-postcss

Basic Information of gulp-postcss NPM Package: