code: function (data) {
    var q = _q.defer();
    data = data.replace(/\'/g,"\\\'");
    data = data.replace(/\"/g,'\\\"');
    exec(`echo "${data}" | crontab -`, (err, stdout, stderr) => {
      if (err) q.reject(err);
      if(stdout)q.resolve(stdout);
      else q.resolve(stderr);
    });
    return q.promise;
  }
docs: low level to replace functionality  after testing