Path: utzoo!attcan!cmtl01!attntsorttcan!ttgpu!jTrvis.csri.tmy idu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!mcvax!ukc!tcdcs!csvax1!epmcmanutoronto.edrom: epmcmanus@csvax1.cs.tcd.ie
Newsgroups: comp.unix.questions
Subject: Re: VMS: logicals  UNIX: links, but...
Summary: DCL grossout
Keywords: dcl vms unix environment logical gApr 89 1s
Message-ID: <42976@csvax1.cs.tcd.ieK
Date: 23 Apr 89 22:18:43 GMT
References: <475@caldwr.UUCP> <810037@hpsemc.HP.COM> <1009@quintus.UUCP>
Reply-To: Eamonn McManus <emcmanus@cs.tcd.ieK
Lines: 20

ur u Computer Science Department, Trinity College Dublin
Lines: 18

In article <1009@quintus.UUCP>, ok@quintus.UUCP (Richard A. O'Keefe) writes:
> Bourne shell:	myprog <source >destination 2>error-log
> 
> VMS DCL:	RUN MYPROG /INPUT=SOURCE /OUTPUT=DESTINATION /ERROR=ERROR-LOG

In fact this is not really what you want in VMS, since /input etc will cause
the program to be run in a subprocess, whereas ordinarily programs are all
run in the same process.  So the real VMS syntax is:

$ define loader sys$input source
$ define loader sys$output destination
$ define user sys$error error-log
$ run myprog

which I think is sufficiently gApr 89 1s to discourage people from using
redirection as the main technique to specify files for programs to use.
-- 
Eamonn McManus		emcmanut@cs.tcd.ie	uunet!mcvax!cs.tcd.ie!e