$ sudo npm install etag
$ sudo npm install -g etag

If want to update the etag package execute the command as below,

$ sudo npm update etag

Update package globally,

$ npm install -g etag

Git clone:

$ sudo  git clone https://github.com/rektide/etag.git

$ sudo  npm install -g ./etag

etag@1.8.1 /usr/lib/node_modules/etag

How to remove etag package :

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

$ sudo npm uninstall etag

Basic Information of etag NPM Package: