There was also an extensive port of the Software Tools to VMS, done by Joe Sventek at LBNL.   Included at the key tools, the shell, pipes, everything.   Felt completely like Unix.
Deborah

On 7/12/19 10:00 AM, Clem Cole wrote:
There were a number of them.  As others have meantioned, the TGV folks did one, there were a number of tools from DECUS, and even DEC actually released more and more UNIX into VMS themselves.   I used to carry a mag tape with vi, the shell and few basic tools that allowed me to edit things on VMS if I had to deal with it.  The biggest issue was TCP/IP, since DECnet was the only networking for a such a long time from DEC.

Stan Smith and I wrote the original VAX IP/TCP support for Tektronix in 1979, in BLISS and some small amount of VAX assembler.  My friends (former coworkers) @ CMU took this back in and enhanced it (the CMU folks did a huge amount of work on the mail interface).  IIRC I sent the tape to Danny Klein, but it might have been someone else.

I have the code from the CMU's update of our work on 9-track tape, but I think it eventually also may have gone out on a DECUS tape.    But I do know that this code base would make its way to DEC, where CJ and Wayne would take it to become the code base that started OpenVMS's version [CJ once told me he was impressed at how little they had to rewrite it, mostly removing some Vaxism's - Stan and I were not worried about portability, we just wanted something to talk correctly to the UNIX V7 TCP from 3COM (UNET) and the TCP we had written from the Cyber NOS]. 

Clem

On Thu, Jul 11, 2019 at 11:56 PM Nigel Williams <nw@retrocomputingtasmania.com> wrote:
>> On Thu, 11 Jul 2019, ron@ronnatalie.com wrote:
>> > (PDP-11, 386) and also there “UNIX running under VMS” product.

Was there only three UNIX on VMS (or under...) options?

Eunice:
https://en.wikipedia.org/wiki/Eunice_(software)

"phi"-nix: A Unix Emulator for VAX/VMS:
https://scholarship.rice.edu/bitstream/handle/1911/101549/TR82-08.pdf?sequence=1&isAllowed=y

ISC's IS/1-WB Work Bench for VMS (UNIX Tools only?)