[rescue] POSIX <> Unix <> Linux

[Ken Hansen]

Unix is a trademark, owned by SCO (IIRC).

AT&T Developed Unix, then sold it to SCO a few years ago.

Bellcore had nothing to do with Unix.

Posix is a common set of APIs/commands that define a "minimum" OS
environment, that would allow a program written to it to be simply
recompiled on a new platform that supported POSIX and run as expected.

POSIX is *quite* limited. WinNT3.51 and up have been POSIX compliant.

POSIX <> Unix.

My shop (200 users +/-) is MS-only, because if something breaks, we want to
have one vendor to call. We are able to support 200 users in two countries
and 4 sites with only 3 IT folks by leveraging a plain vanilla environment
based on Citrix.

We steer clear of Linux because it offers us almost no benefit, and witht he
learning curve as steep as it is (for a previously pure-MS shop), it is very
hard to justify. (the cost of the OS is one of the lowest expenses we have
in IT - heck, even the refurb computers we buy come with nice shiny Win2K
Pro licenses for well under $500...

HTH,

Ken
----- Original Message -----
From: "Jeremy Nielson" <jnielson at ihccorp.com>
To: <rescue at sunhelp.org>
Sent: Wednesday, September 05, 2001 9:06 AM
Subject: Re: [rescue] This Just In: HP to buy Compaq


> On Topic:  A lot of smaller shops use Linux, because they have a more
> do-it-yourself mentality anyways.  If something breaks, their IT guy can
> take the time to figure it out, if he doesn't know it.  The bigger
companies
> steer clear, because they want someone to sue and pay for it when it
breaks,
> and they lose $10,000/minute... there's no guarantee on the big box with
the
> red hat.
>
> Linux is supposedly POSIX compliant, however... how does compliance fit in
> with the "Linux is not Unix" mantra?  I guess the only real Unix is the
AT&T
> Bellcore releases, then?  [They own the Unix name, eh?]



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