user-settings is a simple way to manage user settings for your command-line Node application. Settings are stored as a file in the user's home directory and all methods are synchronous for simplicity.
You specify the filename to store and retrieve
// If ~/.myAppSettings doesn't exist, it's created
var settings = require('user-settings').file('.myAppSettings');
// Storing user settings
settings.set('username', 'rev087');
// Retrieving user settings
var username = settings.get('username');
// Unsetting
settings.unset('username');The home directory used for Unix systems is process.env.HOME and process.env.USERPROFILE for Windows.