node.js：Commander.js命令行接口

npm i commander

// index.js
const { Command } = require('commander');
const program = new Command();
// 必填选项
program.requiredOption('-i, --input <filename>', 'input filename');
program.requiredOption('-o, --output <filename>', 'output filename');
program.parse();
console.log(program.opts());

$ node index.js -i name.js -o demo.js
{ input: 'name.js', output: 'demo.js' }