$ sudo npm install youtube-dl
$ sudo npm install -g youtube-dl

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

$ sudo npm update youtube-dl

Update package globally,

$ npm install -g youtube-dl

Git clone:

$ sudo  git clone https://github.com/rektide/youtube-dl.git

$ sudo  npm install -g ./youtube-dl

youtube-dl@1.12.2 /usr/lib/node_modules/youtube-dl

How to remove youtube-dl package :

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

$ sudo npm uninstall youtube-dl

Basic Information of youtube-dl NPM Package: