From: David Kastrup <dak@gnu.org>
Date: Thu, 29 Nov 2007 10:17:59 GMT
Subject: Re: [PATCH v2] Replace instances of export VAR=VAL with VAR=VAL; export VAR
Message-ID: <85prxt5p9k.fsf@lola.goethe.zz>
In-Reply-To: <474E6CC8.8000301@viscovery.net>

Johannes Sixt <j.sixt@viscovery.net> writes:

>> What problem are we talking about exactly, and with what shell?
>
> $ export foo="bar    baz"
> $ bash
> bash$ export JUNK=$foo
> bash$ sh -c 'echo "$JUNK"'
> bar    baz
> bash$ exit
> exit
> $ ash
> ash$ export JUNK=$foo
> ash$ sh -c 'echo "$JUNK"'
> bar
> ash$ exit
>
> The problem is $foo not being quoted on the RHS of the assignment of
> the export command: bash doesn't word-split, but ash does. Hence, *if*
> export VAR=VAL is used, always quote VAL.

I much prefer the quoting solution over the quite more invasive rewrites
proposed here.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum