$ sudo npm install selenium-server
$ sudo npm install -g selenium-server

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

$ sudo npm update selenium-server

Update package globally,

$ npm install -g selenium-server

Git clone:

$ sudo  git clone https://github.com/rektide/selenium-server.git

$ sudo  npm install -g ./selenium-server

selenium-server@3.7.1 /usr/lib/node_modules/selenium-server

How to remove selenium-server package :

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

$ sudo npm uninstall selenium-server

Basic Information of selenium-server NPM Package: