$ sudo npm install update-notifier
$ sudo npm install -g update-notifier

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

$ sudo npm update update-notifier

Update package globally,

$ npm install -g update-notifier

Git clone:

$ sudo  git clone https://github.com/rektide/update-notifier.git

$ sudo  npm install -g ./update-notifier

update-notifier@2.3.0 /usr/lib/node_modules/update-notifier

How to remove update-notifier package :

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

$ sudo npm uninstall update-notifier

Basic Information of update-notifier NPM Package: