checkgid(8) BSD System Manager's Manual checkgid(8)
NAME
checkgid -- validate group identifiers
SYNOPSIS
checkgid group ...
DESCRIPTION
Given one or more group identifers on the command line (e.g., "httpd" or "#-1"), figure out whether they'll be valid for the server to use at run- time. If a groupname isn't found, or we can't setgid() to it, return -1. If all groups are valid, return 0. This may need to be run as the superuser for the setgid() to succeed; running it as any other user may result in a false negative.
SEE ALSO
httpd(8) BSD October 21, 2008 BSD
Mac OS X 10.8 - Generated Mon Sep 3 16:39:22 CDT 2012