On Sun, Nov 21, 2021 at 01:12:07PM -0600, Rod Rodolico via Dng wrote:
> Debian, Redhat, etc... are actually more "based on Unix" than "Unix",
> and that process appears to be growing as more and more functions are
> taken over by system-d. Just like you can say that OS X is "based on"
> Unix, but you can not call it Unix except in the broadest terms.

That's an… interesting take on truth. Debian, Red Hat are UNIX-like systems.
But OS X (actually renamed to macOS around five years ago) is not UNIX-like,
it is actually a certified UNIX system. You can check latest
certificate at
https://www.opengroup.org/openbrand/register/brand3668.htm

From all above systems, only macOS can be called UNIX.

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Tomasz Torcz                                                       72->|   80->|
tomek@???                                               72->|   80->|