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UNIX was originally a commercial OS…unless by UNIX you mean Linux or BSD. Plus macOS is UNIX too.


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Interesting how you call OS X UNIX, as opposed to Linux.

Aren’t macOS and iOS Unix-based? Unix is one of the most widely used operating systems in the world right now.

If you use Macs, you have bona-fide True Unix Experience. Mac OS is more Unix than Linux.

unix like

macOS is certified Unix. Has been for over a decade.


UNIX was a proprietary OS but literally everyone used it in the 80’s - without a license. Campuses to labs around the US.

We need to nuke the Apple bullshit from MacOS Catalina and convert it into people’s operating system. Ethics be damned.


commercial unixes haven't been relevant for decades. Unix is linux these days.

Sorry I was mainly interested in server infrastructure, but MacOS is a good example of Unix in the wild.

mac os, since os x leopard, isn't just 'unixy', infact it is a 100% POSIX compliant certified UNIX operating system!

gnu/linux is what one would call 'unixy' =)


Well, macOS, HP/UX and Linux based operating systems are all UNIX-like operating systems.

Unix is dead?

Aren't Mac OS X, iOS, and Android basically unix OSes?

I'd say Unix won.


It's not as though Linux is the only Unix in town. There's also MacOS and BSD.

edit: and probably a whole bunch of other Unixes (Unices?) that I don't know about.


Just a sidenote, after 25 years of using Windows, I switched to OSX. But following the article logic, that can also be considered a Unix. :-)

And UNIX.

I'm aware of Unix, but there have been some developments and divergences since the 70's. MacOS could probably be called a Unix variant as well. And ChromeOS is a pretty different beast from Debian despite nominally both being Linux.

And unix is one of the most adopted desktop and mobile os in the works via macos.

Unix is a family of OSes that includes Linux in particular.

It's definitely partially proprietary, and it is definitely a Unix operating system.

Linux isn't Unix: commercial Unix already got obliterated by Linux (and the dotcom bubble, Itanium). Completely different development model, vastly different capabilities.

Apple macOS is a UNIX™ and has been for decades, both in Arm and x86 implementations, and before that in PowerPC form.

Two Linux distros, both derived from CentOS Linux, have also held certification in the past.

Whether an OS is a UNIX™ or not is nothing to do with whether it is based on AT&T code and has not been since Novell bought AT&T Unix Labs and donated the trademark to the Open Group in 1993. For three decades, whether it's a Unix or not depends solely on whether it passes Unix compatibility testing.

Linux is a Unix and so is macOS.

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