javascript - 将文件从一个目录复制到另一个目录

Question

How could I use javascript to copy C:\\folderA\\myfile.txt to C:\\folderB\\myfile.txt ? I also have to check to make sure that myfile.txt does not already exist in folderB . And finally I have to then rename the new file from myfile.txt to myfile.bak .

I know javascript can't really be used on a local file system, but if it could be, how would I write this code as simply as possible?

Answer 1

in browser side you cannot access local system files.But in server side you could do it as follows.

//copyfile.js
const fs = require('fs');

// destination will be created or overwritten by default.
fs.copyFile('C:\folderA\myfile.txt', 'C:\folderB\myfile.txt', (err) => {
  if (err) throw err;
  console.log('File was copied to destination');
});

nodejs has to be installed on your server and then run above script as follows

node copyfile.js