$ sudo npm install qrcode-terminal
$ sudo npm install -g qrcode-terminal

If want to update the qrcode-terminal package execute the command as below,

$ sudo npm update qrcode-terminal

Update package globally,

$ npm install -g qrcode-terminal

Git clone:

$ sudo  git clone https://github.com/rektide/qrcode-terminal.git

$ sudo  npm install -g ./qrcode-terminal

qrcode-terminal@0.11.0 /usr/lib/node_modules/qrcode-terminal

How to remove qrcode-terminal package :

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

$ sudo npm uninstall qrcode-terminal

Basic Information of qrcode-terminal NPM Package: