$ sudo npm install protocol-buffers
$ sudo npm install -g protocol-buffers

If want to update the protocol-buffers package execute the command as below,

$ sudo npm update protocol-buffers

Update package globally,

$ npm install -g protocol-buffers

Git clone:

$ sudo  git clone https://github.com/rektide/protocol-buffers.git

$ sudo  npm install -g ./protocol-buffers

protocol-buffers@3.2.1 /usr/lib/node_modules/protocol-buffers

How to remove protocol-buffers package :

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

$ sudo npm uninstall protocol-buffers

Basic Information of protocol-buffers NPM Package: