$ sudo npm install util.promisify
$ sudo npm install -g util.promisify

If want to update the util.promisify package execute the command as below,

$ sudo npm update util.promisify

Update package globally,

$ npm install -g util.promisify

Git clone:

$ sudo  git clone https://github.com/rektide/util.promisify.git

$ sudo  npm install -g ./util.promisify

util.promisify@1.0.0 /usr/lib/node_modules/util.promisify

How to remove util.promisify package :

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

$ sudo npm uninstall util.promisify

Basic Information of util.promisify NPM Package: