Except AFAIK there are zero features in POSIX that came from GNU/Linux.
Now, if anything I do agree that UNIX is stuck on the past by not having any standard workstation environment or adoption of modern kernel architectures.
Also CDE is not what one would expect from a 2015 workstation.
> Except AFAIK there are zero features in POSIX that came from GNU/Linux.
My point is that commercial unixes are old, dying, relics that don't define what unix is anymore, Linux does (and to a lesser extent, so do the BSDs). There is no such thing as a "real unix" anymore.
> Also CDE is not what one would expect from a 2015 workstation.
The unix workstation/desktop market was lost long ago. Unfortunately, Linux hasn't successfully recovered it and, IMHO, never will. The commercial vendors stopped caring when big hardware margins dissappeared and the opensource community lacks the unifying vision to build something sensible.
Now, if anything I do agree that UNIX is stuck on the past by not having any standard workstation environment or adoption of modern kernel architectures.
Also CDE is not what one would expect from a 2015 workstation.