gistfile1.txt

var util  = require('util'),
    spawn = require('child_process').spawn;
    
function s(img) {
  var p = spawn(s);
  p.stdout.on('data', function (data) {
    console.log(s + ': stdout: ' + data);
  });

  p.stderr.on('data', function (data) {
    console.log(s + ': stderr: ' + data);
  });

  p.on('exit', function (code) {
    console.log(s + ': child process exited with code ' + code);
  });
}

s('notepad');
s('calc');
s('regedit');