Penguin

Acronym for Group IDentifier.

This is a numeric ID which corresponds to a group. A process may be a member of multiple groups, a file only has one group. group mappings are stored in /etc/group (see group(5)). You can see what groups you are in with id(1).

lib/main.php:944: Notice: PageInfo: Cannot find action page

lib/main.php:839: Notice: PageInfo: Unknown action