code: function openExplorerinLinux(path, callback) {
      path = path || '/';
      let p = spawn('xdg-open', [path]);
      p.on('error', (err) => {
          p.kill();
          return callback(err);
      });
  }
docs: Opens the Explorer and executes the callback function in ubuntu like os
  @param {string} path The path string to be opened in the explorer
  @param {Function} callback Callback function to which error is passed if some error occurs