AIX, HP-UX, macOS, Xinuos, z/OS (see "Single UNIX Specification", wikipedia)

since i suspect there aren't users of 4 of those on dovenet (the most likely being perhaps AIX), might i suggest this echo be used only for macOS?

I was a professional user of z/OS until recently. ;) I used several
console utilities that "sat on top of" it, but I only got down to using
things from the *nix command line once or twice.


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Dumas Walker wrote to FUSION <=-

I was a professional user of z/OS until recently. ;) I used several console utilities that "sat on top of" it, but I only got down to using things from the *nix command line once or twice.

That list reminded me of some of the "weird" UNIXes out there, like
Primos - it ran on top of PRIME/OS on big CDC iron. That was the
closest my college came to UNIX, it was great for teaching shell
scripts and BASH to tons of college students, but you couldn't develop
on it.

This was the late '80s. After the weed-out CS classes and a class in
assembler on a VAX 11/750, we did all of our compiling on our own PCs.
Most people used Turbo C, but I was the oddball (go figure?), I had a
deal from the bookstore on Microsoft QuickC, but ended up using EMACS
as an IDE with Mark Williams C, with a BASH shell and *nix* commands
for DOS.



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