fs_watch.js

var fs = require('fs');
var util = require('util');

var writer = fs.createWriteStream('../log.txt');

fs.watch('.', function (event, filename) {
  
  writer.write('================\nEvent: ' + event + '\n');
  if (filename) {
    writer.write('filename provided: ' + filename + '\n');
    stat  = fs.statSync(filename);
	writer.write(util.inspect(stat) + '\n===================\n');
  } else {
    writer.write('filename not provided\n===================\n');
  }
});