I found that 2017 paper "Extending Unix Pipelines to DAGs". It's open access:

https://ieeexplore.ieee.org/document/7903579

The open source code itself is here: https://github.com/dspinellis/dgsh

Maybe an ambitious TUHS contributor can get the code running and give us a report.

Marc Rochkind

On Thu, Dec 5, 2024 at 3:38 PM Chet Ramey via TUHS <tuhs@tuhs.org> wrote:
On 12/5/24 5:03 PM, Warner Losh wrote:

> The <() , >()  syntax is a bash extension. Not all shells support it. And
> I couldn't find them in POSIX Issue 8.

Credit where credit is due: I picked them up from ksh93, and extended
them to use named pipes on systems where /dev/fd isn't available.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/


--
My new email address is mrochkind@gmail.com