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From: hughes@copper.ucs.indiana.edu (larry hughes)
Newsgroups: comp.unix.programmer
Subject: Re: Why use U* over VMS
Message-ID: <69986@iuvax.cs.indiana.edu>
Date: 5 Nov 90 15:43:34 GMT
References: <ANDYO.90Oct23101417@glasperl.masscomp> <1990Oct25.160937.28144@edm.uucp> <1089@dg.dg.com> <1380@tharr.UUCP>
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Organization: Indiana University, Bloomington IN.
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In article <1380@tharr.UUCP> sweh@tharr.UUCP (Stephen Harris) writes:
>How in VMS do you have filters and pipelines?
>eg, what would be the VMS (DCL?) equivalent of
>	getso - | tbl | pic | eqn | rof | col | sqps | lpr -Ppost < file
>
>Is there an equivalent, or would it need a lot of temporary files?

Yes, you would need a lot of temporary files.  The output of each
step would have to redirected to a file (ala $ DEFINE/USER SYS$OUTPUT
filename) and then the temp file would have to be redirected as input
to the next step (ala $ DEFINE/USER SYS$INPUT filename).  And, don't
forget to delete the temp files!

(Yes, this is slightly worse that the way that MS-DOS does it...at least
DOS makes the temp file usage transparent.)

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