include env file using dotenv in package.json script code example

Example 1: .env

require('dotenv').config()
const dotenv=require('dotenv');

//Usuage
process.env.NAME

Example 2: dotenv not loading process.env in node

Rename your file to just .env, removing any prefix
require it as early as possible in your application with the code snippet below
require('dotenv').config();