Nodejs复制文件/文件夹的方法

function copyIt(from, to) {

 fs.writeFileSync(to, fs.readFileSync(from));
 //fs.createReadStream(src).pipe(fs.createWriteStream(dst));大文件复制
}

copyIt(from.js,to.js);

//获取node执行的参数
var arguments = process.argv.splice(2);

console.log(process.argv);
var child_process = require('child_process');

function copyIt(from, to) {

 child_process.spawn('cp', ['-r', from, to]); 
}

copyIt(arguments[0],arguments[1]);