Instructions for the fs.chown method in node.js

method description:

Change file ownership.

syntax:

fs.chown(path, uid, gid, [callback(err)])

As this method belongs to fs module, fs module needs to be introduced before use (var fs= require(" fs ")).

receive parameters:

path                   directory path

uid                     user ID

gid                     group identity

callback       callback, passing the exception parameter err

example:

fs.chown('content.txt', uid, gid, function(err){

 if(err){

  console.log(err);

 }else{

  console.log("change done");

 }

})

source code:

fs.chown = function(path, uid, gid, callback) {

  callback = makeCallback(callback);

  if (!nullCheck(path, callback)) return;

  binding.chown(pathModule._makeLong(path), uid, gid, callback);

};