$ sudo npm install mocha
$ sudo npm install -g mocha

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

$ sudo npm update mocha

Update package globally,

$ npm install -g mocha

Git clone:

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

$ sudo  npm install -g ./mocha

mocha@4.0.1 /usr/lib/node_modules/mocha

How to remove mocha package :

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

$ sudo npm uninstall mocha

Basic Information of mocha NPM Package: