var view = function (input, num) {
  var cmd = new Command('googlefeed ' + (num ? Math.abs(parseInt(num, 10)) : '') + ' | gfview'), result = [];

  cmd.addEventListener('result', function (state) {
    for (var i = 0; i < state.result.length; ++i) {
      result.push(state.result[i]);
    }
    delete result.loading;
  });
  result.loading = true;
  cmd.execute(input);
  return result;
};