=over =item getlogin X X This implements the C library function of the same name, which on most systems returns the current login from F, if any. If it returns the empty string, use L|/getpwuid UID>. my $login = getlogin || getpwuid($<) || "Kilroy"; Do not consider L|/getlogin> for authentication: it is not as secure as L|/getpwuid UID>. Portability issues: L. =back