Well - Linux works now, and can talk to all the CP services. Linux also comes
with Rexx (Regina), XEdit (THE Editor from Tim Hessling), and pipes that are
roughly equivalent to CMS Pipelines. Named pipes and message queues and such
are all available and under Linux and Solaris, very heavily used.
The biggest darn problem is that Linux is not very efficient compared to CMS
(or mvs, z/.OS, OS/390, etc.) which was written with the IBM arch. in mind, and
probably in assembler to boot.
Linux is quite capable and fast on a zSeries machine, but not as fast as or
anywhere near as efficient as CMS.
Music is pretty good I suppose.
-Paul
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> Has anyone written a third party OS that can easily replace CMS?
None are "easy" replacements, but IMHO there are several possible
candidates:
MUSIC
Linux
Solaris (coming soon)
Only MUSIC is really "CMS-like". The other two are obvious Unix
derivatives, and would require retooling or emulation of the CMS DIAG
API. Linux would be consistent with other things going on in the
industry and inside IBM, and Solaris would ...well, just be weird.
The key bit would be the presence of REXX and Pipes, IMHO. The other
external commands could be built on a piece-by-piece basis, but there's
a lot of logic for CMS users that really depends on those two parts.
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