Copy file - Node.js File

Node.js examples for File:File Copy

  1. HOME
  2. Node.js
  3. File
  4. File Copy

Description

Copy file

Demo Code

var path = require('path');
var fs = require('fs');
var crypto = require('crypto');


/*copy file*//* w  w  w.  j a  v a  2  s  .com*/
exports.copyFileSync = function(fromPath,toPath){
  if(fs.existsSync(toPath)){
    fs.unlinkSync(toPath);
  }else{
    exports.mkdirSync(path.dirname(toPath));
  }
  var BUF_LENGTH = 64*1024
  var buff = new Buffer(BUF_LENGTH)
  var fdr = fs.openSync(fromPath, 'r');
  var fdw = fs.openSync(toPath, 'w');
  var bytesRead = 1;
  var pos = 0;
  while (bytesRead > 0){
    bytesRead = fs.readSync(fdr, buff, 0, BUF_LENGTH, pos);
    fs.writeSync(fdw,buff,0,bytesRead);
    pos += bytesRead;
  }
  
  fs.closeSync(fdr);
  fs.closeSync(fdw);
}

Related Tutorials