what are supported in `ps':
-M Extract values associated with the name list from the
specified core instead of the default /dev/kmem.
-N Extract the name list from the specified system instead
of the default /kernel.
Written by: Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org>
Obtained from: the sysutils/pkill port
straight from NetBSD (except to add the RCS-ID lines for FreeBSD).
These will probably require a few updates before they are added to
the FreeBSD buildworld. I might MFC these to 4.x-stable after 4.10.
Discussed on: freebsd-arch
Obtained from: NetBSD (and OpenBSD also has these)