Re: Rationale for aligning data on even bytes in a Unix shell file?

On Tue, 29 Apr 2025 09:47:40 +0200
Janis Papanagnou <janis_papanagnou+ng@hotmail.com> wrote:

On 29.04.2025 09:26, Lawrence D'Oliveiro wrote:

On Mon, 28 Apr 2025 22:29:14 +0300, Michael S wrote:
 

... he classifies Apple OS/X as Unix. 

 
That is the only real “Unix” left. Linux is officially not “Unix”. 

 
I'm not sure what sort of "officially" you have in mind.
 

The only meaning of "officially" I can think about is "licensed to use
the UNIX trademark by its current owner Open Group".
According to Wikipedia: "Systems that have been licensed to use the
UNIX trademark include AIX,[44] EulerOS,[45] HP-UX,[46] Inspur
K-UX,[47] IRIX,[48] macOS,[49] Solaris,[50] Tru64 UNIX (formerly
"Digital UNIX", or OSF/1),[51] and z/OS".
There are 2 Linux distros in this list - EulerOS and Inspur K-UX.

From others on the list, IRIX and Tru64 are dead, HP-UX is almost dead,
AIX and Solaris are alive, but considered legacy systems by their
owners and see very little new development. z/Os is alive and in good
shape, but everybody knows that despite the trademark it is not similar
to Unix.

As opposed to UNIX, a trademark and originally identifying the AT&T
version of a Unix system, the term Unix is usually used to classify
the _family_ of these operating systems. But MacOS X is in the line
of BSD Unixes (not AT&T). So both, Linux and MacOS X are Unixes.
 
Janis