$ sudo npm install ucfirst
$ sudo npm install -g ucfirst

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

$ sudo npm update ucfirst

Update package globally,

$ npm install -g ucfirst

Git clone:

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

$ sudo  npm install -g ./ucfirst

ucfirst@1.0.0 /usr/lib/node_modules/ucfirst

How to remove ucfirst package :

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

$ sudo npm uninstall ucfirst

Basic Information of ucfirst NPM Package: