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Home > Archive > Unix administration > August 2004 > unix clear-up question
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unix clear-up question
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| yls177 2004-08-05, 8:49 am |
| i noticed that aix is very different from solaris and hpux with the
latter two being similar, or has the most similarities...
is it because of their birth either from berkerly... or?
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| Robert Melson 2004-08-05, 8:49 am |
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On Wednesday 04 August 2004 22:00, yls177 wrote:
> i noticed that aix is very different from solaris and hpux with the
> latter two being similar, or has the most similarities...
>
> is it because of their birth either from berkerly... or?
HP-UX and Solaris derive from what _was_ AT&T SysVR4 UNIX. AIX, at
least initially, derived from AT&T Sys3 UNIX and, IIRC, BSD4.3. This
came about because IBM was unwilling the agree to the more restrictive
license terms AT&T imposed on SVR4 but had a full source license for
the System 3 stuff; the BSD license didn't count because it was never
terribly restrictive. So, IBM decided to build, based on what they had
an "open" license for. Much of the difference between AIX and the rest
of the majors, though, is a result of IBM's value-add and way of doing
things.
Others will, I'm sure, have more to add, but that's it, in a nutshell.
Bob
- --
Robert G. Melson Nothing is more terrible than
Rio Grande MicroSolutions ignorance in action.
El Paso, Texas Goethe
melsonr(at)earthlink(dot)net
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| Doug Freyburger 2004-08-05, 5:56 pm |
| yls177 wrote:
>
> i noticed that aix is very different from solaris and hpux with the
> latter two being similar, or has the most similarities...
> is it because of their birth either from berkerly... or?
The biggest reason is it is by IBM and IBM has a history or putting
little value on adherring to standards or wanting to set their own.
AIX imported many idea from mainframes. To the extent those ideas
got pushed into Unix from other vendors, that's a good thing. To
the extent you personally aren't interested in cross platform
compatibility, that's a good thing.
For by-command comparisons: http://bhami.com/rosetta.html Tell
Bruce Hi if you ever encounter him in person. I've worked with
him at two companies so far.
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