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From: Thomas Gellekum <thomas@ghpc8.ihf.rwth-aachen.de>
Message-Id: <199505100721.JAA23932@ghpc6.ihf.rwth-aachen.de>
Subject: Re: pdksh errors - Solved!
To: wsantee@wsantee.oz.net (Wes Santee)
Date: Wed, 10 May 1995 09:21:52 +0200 (MET DST)
Cc: freebsd-ports@FreeBSD.org
In-Reply-To: <199505100613.XAA06332@wsantee.oz.net> from "Wes Santee" at May 9, 95 09:34:00 pm
Organization: Institut f. Hochfrequenztechnik, RWTH Aachen
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Wes Santee wrote:
> 
> Well, I dunno if anybody has any interest in this, but I solved my
> earlier problem of pdksh crapping out whenever I tried to run
> /usr/bin/clear.  The error was in the global /etc/ksh.kshrc file.
> Here is the culprit:
> 
>      HOSTNAME=${HOSTNAME:-`uname -n`
>      HOST=${HOSTNAME%%.*}            <--- error

Now that you're saying it...

> Incidentally, you may recall that the original error was:
> 
>      /usr/bin/clear: 21: syntax error: bad substitution
> 
> Well, I'll leave it to the reader to figure out what line number the
> offending statement was in the /etc/ksh.kshrc file. :)

pdksh sets ${ENV} to /etc/ksh.kshrc.  /bin/sh reads ${ENV}.  Obviously a
POSIX thing.  /bin/sh doesn't know anything about the %% substitution so
it gives an error message when it tries to execute /usr/bin/clear.  You
will notice that /etc/profile (the one from the ksh distribution)
contains a test for the interpreter (something like `if [ $RANDOM !=
$RANDOM ] we're ksh else a bourne shell'; sorry, memory's the first
thing to go).  I think I guarded /etc/ksh.kshrc in a similar manner.

Maybe I should add my changes to the port and install the dot-files
somewhere (/etc? /usr/share/skel?).

tg