lib/os/user-management/get-gid.js
function getGid(groupname, options) {
  const gid = _.tryOnce(findGroup(groupname, options), 'id');
  return _.isUndefined(gid) ? null : gid;
}
function getGid(groupname, options) {
  const gid = _.tryOnce(findGroup(groupname, options), 'id');
  return _.isUndefined(gid) ? null : gid;
}
function getGid ( groupname , options ) { const gid = _ . tryOnce ( findGroup ( groupname , options ) , 'id' ) ; return _ . isUndefined ( gid ) ? null : gid ; }
Get group GID
@function $os~getGid
@param {string} groupname
@param {Object} [options]
@param {boolean} [options.refresh=true] - Setting this to false allows operating over a cached database of groups,
for improved performance. It may result in incorrect results if the affected group changes
@param {boolean} [options.throwIfNotFound=true] - By default, this function throws an error if the specified group
cannot be found
@returns {number|null} - The group ID or null, if it cannot be found
@example
// Get GID of 'mysql' group
$os.getGid('mysql');
// => 1001
Get group GID