Commander.js

Overview

Commander is the standard library for building Node.js CLIs. Parse arguments, define subcommands, generate help text, and handle options. Powers thousands of CLIs including create-react-app, eslint, and prisma.

Instructions

Step 1: Basic CLI

// cli.ts — CLI with commands and options
import { Command } from 'commander'

const program = new Command()
  .name('mytools')
  .description('Developer productivity toolkit')
  .version('1.0.0')