code: function getOwnerAndGroup(file) {
    const data = fs.lstatSync(file);
    const groupname = getGroupname(data.gid, {throwIfNotFound: false}) || null;
    const username = getUsername(data.uid, {throwIfNotFound: false}) || null;
    return {uid: data.uid, gid: data.gid, username: username, groupname: groupname};
  }
docs: Get file owner and group information
  @function $file~getOwnerAndGroup
  @param {string} file
  @returns {object} - Object containing the file ownership attributes: groupname, username, uid, gid
  @example
  // Get owner and group information of 'conf/my.cnf'
  $file.getOwnerAndGroup('conf/my.cnf');
  // => { uid: 1001, gid: 1001, username: 'mysql', groupname: 'mysql' }