$ sudo npm install imagemin-pngquant
$ sudo npm install -g imagemin-pngquant

If want to update the imagemin-pngquant package execute the command as below,

$ sudo npm update imagemin-pngquant

Update package globally,

$ npm install -g imagemin-pngquant

Git clone:

$ sudo  git clone https://github.com/rektide/imagemin-pngquant.git

$ sudo  npm install -g ./imagemin-pngquant

imagemin-pngquant@5.0.1 /usr/lib/node_modules/imagemin-pngquant

How to remove imagemin-pngquant package :

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

$ sudo npm uninstall imagemin-pngquant

Basic Information of imagemin-pngquant NPM Package: