$ sudo npm install sp-pnp-js
$ sudo npm install -g sp-pnp-js

If want to update the sp-pnp-js package execute the command as below,

$ sudo npm update sp-pnp-js

Update package globally,

$ npm install -g sp-pnp-js

Git clone:

$ sudo  git clone https://github.com/rektide/sp-pnp-js.git

$ sudo  npm install -g ./sp-pnp-js

sp-pnp-js@3.0.1 /usr/lib/node_modules/sp-pnp-js

How to remove sp-pnp-js package :

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

$ sudo npm uninstall sp-pnp-js

Basic Information of sp-pnp-js NPM Package: