On Fri, 27 Oct 2017, George Michaelson wrote:
I worked with Charles in the University of York.
he's the guy who said
to me "how can it be simple, if the printout is half an inch thick"
about SMTP.
....
This is that guy who did the clone of the v7 Bourne shell that used to be
used in Minix and PicoBSD and was the basis of pdksh?
Yes.
Charles is still very active in the Plan 9 world. I don't know if he
still prefers ed over sam or Acme though. :-)
Arnold