What’s the general opinion on the BSDs? Are they just Unix-Like (like Linux), or are they really Unix?
Some call them “heritage Unix”, because, although they no longer contain a single line of AT&T code (and haven’t for over 40 years), they were ultimately derived from the original Unix.
This is a bit tongue-in-cheek, because I wonder, if you consider BSD to be “true Unix”, what other “Unix-like” operating system besides Linux kernel-based systems there are. Or are “real” Unices also considered “unix-like”?
As an aside, what about macOS, if you use the command line a lot?
It’s more Unix like than Linux. It’s sticks to the Unix philosophies more than Linux does. MacOS is basically a modded version of FreeBSD with a DE.
macOS is also a certified UNIX according to the Open Group:
All BSD flavors are as far as I know.
Nah, UNIX certification requires paying money and almost all of the BSD spins said “That’s dumb, we barely have money as it is”
Smart choice. I didn’t know that, thought it was free, cuz I think I read somewhere that all were certified… I guess I remembered wrong. It was probably about something esle.
The list of “certified” UNIXes is pretty limited. The referenced site only lists like 7 UNIX versions as certified and don’t mention FreeBSD, OpenBSD, NetBSD or DragonFlyBSD, just stuff like AIX, SCO, IBM z/OS and HP-UX in addition to macOS.
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https://vermaden.wordpress.com/2022/06/19/is-freebsd-a-real-unix/
Personally, I consider macOS, BSDs, and Linux real “Unixes”.
They’re more unix like than anything else in widespread use.
all UNIX like or tru UNIX systems are allowed, if they are stil in development
