If I recall this was one of the implementations that wrote to a file and then forked the next process after it got to eof.    

On Fri, Jul 12, 2019 at 2:44 PM Deborah Scherrer <dscherrer@solar.stanford.edu> wrote:
I didn't do this port, so don't know the details.  But it was done in
the late 70s (I think) and had broad distribution.  When I collected
various Software Tools versions, I was not able to find the VMS one. Sorry.
Deborah

On 7/12/19 1:45 PM, Paul Winalski wrote:
> On 7/12/19, Deborah Scherrer <dscherrer@solar.stanford.edu> wrote:
>> 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.
> How did the LBNL Software Tools for VMS implement pipes?  I'm curious
> because DEC itself did a product in the mid-1980s called DEC Shell
> that was a VMS port of the Bourne shell and associated utilities.  I
> wrote a VMS device driver that implemented pipes as a true VMS
> pseudo-device, similar to VMS mailboxes but with true Unix pipe
> semantics.
>
> -Paul W.

--
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