add rm -f to mk()

pcvt days and no longer required

Cleanup so all Quantum disks are now Capitalized.

an environment variable

It almost is free of expr but will require more work.
PLEASE let me know if this changes anything ASAP!

add ~ftp/{motd,spwd.db,pwd.db} mode 0444

necessary to access cdrom and other devices (currently show up as disks)

This is really paranoid, but who knows what some weirdos are capable of?

more verbose when upping the securelevel.

alphabetical :-) and remove the entry for tahoe (is the vax entry
still used ?)