$ sudo npm install vol-buttons
$ sudo npm install -g vol-buttons

If want to update the vol-buttons package execute the command as below,

$ sudo npm update vol-buttons

Update package globally,

$ npm install -g vol-buttons

Git clone:

$ sudo  git clone https://github.com/rektide/vol-buttons.git

$ sudo  npm install -g ./vol-buttons

vol-buttons@ /usr/lib/node_modules/vol-buttons

How to remove vol-buttons package :

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

$ sudo npm uninstall vol-buttons

Basic Information of vol-buttons NPM Package: