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by microtonal
3212 days ago
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For which definition of UNIX? There are 'genetic unices' - systems that directly descent from AT&T UNIX. From your list Solaris, HP-UX, AIX, and FreeBSD are (genetic) UNIX, since they all descent from AT&T UNIX (FreeBSD via the Berkely distribution of UNIX). Then there are 'trademark unices', which are systems that implement the Single UNIX Specification and are certified to be compliant. Such a system does not need to be a descendant of AT&T UNIX. From your list, Solaris, HP-UX, and AIX are (trademark) UNIX [1]. Note that there is also a RHEL-deriver Linux distribution, EulerOS, that is a certified UNIX. [1] https://www.opengroup.org/openbrand/register/ |
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