$ sudo npm install concurrently
$ sudo npm install -g concurrently

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

$ sudo npm update concurrently

Update package globally,

$ npm install -g concurrently

Git clone:

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

$ sudo  npm install -g ./concurrently

concurrently@3.5.1 /usr/lib/node_modules/concurrently

How to remove concurrently package :

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

$ sudo npm uninstall concurrently

Basic Information of concurrently NPM Package: