getgrent setgrent endgrent
These functions do the same thing as their like-named system library routines - see getgrent (3). These routines iterate through your /etc/group file (or its moral equivalent coming from some server somewhere). The return value from getgrent in list context is:
($name, $passwd, $gid, $members)
where
$members
contains a space-separated list of the login names of the members of the group.
To set up a hash for translating group names to gids,
say this:
while (($name, $passwd, $gid) = getgrent) {
$gid{$name} = $gid;
}
In scalar context, getgrent returns only the group name.
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