> While this doesn't make all Linux distributions UNIX certified, it puts a rather large dent in the claim that they cannot be qualified as UNIX because of some claimed divergence from the standards.
No one is claiming it can't be a Unix. But as you noted, Linux distributions normally do not meet the legal criteria, nor are they descended from one that did.
Legally Unix is a trademark and has a very specific legal meaning. If you don't mean that legal meaning, then it is clearer if you use another term. The usual term is "Unux-like"; that is the widely-used term and it has been for decades.
A rose by any other name may smell as sweet, but calling it a different word risks confusion.
No one is claiming it can't be a Unix. But as you noted, Linux distributions normally do not meet the legal criteria, nor are they descended from one that did.
Legally Unix is a trademark and has a very specific legal meaning. If you don't mean that legal meaning, then it is clearer if you use another term. The usual term is "Unux-like"; that is the widely-used term and it has been for decades.
A rose by any other name may smell as sweet, but calling it a different word risks confusion.