r perlmachten Perl notes for Power MachTen
r perlmacos Perl notes for Mac OS (Classic)
r perlmacosx Perl notes for Mac OS X
-r perlmint Perl notes for MiNT
r perlmpeix Perl notes for MPE/iX
r perlnetware Perl notes for NetWare
r perlopenbsd Perl notes for OpenBSD