Re: [BUG] 'unset' fails silently under specific conditions

Path	csiph.com!weretis.net!feeder6.news.weretis.net!nntp.club.cc.cmu.edu!micro-heart-of-gold.mit.edu!bloom-beacon.mit.edu!bloom-beacon.mit.edu!171.64.64.130.MISMATCH!usenet.stanford.edu!not-for-mail
From	Martijn Dekker <martijn@inlv.org>
Newsgroups	gnu.bash.bug
Subject	Re: [BUG] 'unset' fails silently under specific conditions
Date	Tue, 1 May 2018 23:27:26 +0100
Lines	19
Approved	bug-bash@gnu.org
Message-ID	<mailman.13231.1525213654.27995.bug-bash@gnu.org> (permalink)
References	<a16a34cf-eea7-16b8-76d8-e05d0fe2cc32@inlv.org> <1295e1ea-73c0-e479-da03-b784ec975030@inlv.org> <59161dc5-bb33-d842-4af3-477e8784a4f5@inlv.org> <71d753dc-036f-7fd7-d703-408c3f8ac202@case.edu>
NNTP-Posting-Host	lists.gnu.org
Mime-Version	1.0
Content-Type	text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding	7bit
X-Trace	usenet.stanford.edu 1525213654 7557 208.118.235.17 (1 May 2018 22:27:34 GMT)
X-Complaints-To	action@cs.stanford.edu
To	bug-bash@gnu.org
Envelope-to	bug-bash@gnu.org
User-Agent	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:52.0) Gecko/20100101 Thunderbird/52.7.0
In-Reply-To	<71d753dc-036f-7fd7-d703-408c3f8ac202@case.edu>
Content-Language	en-GB
X-detected-operating-system	by eggs.gnu.org: GNU/Linux 3.x [fuzzy]
X-Received-From	37.59.109.123
X-BeenThere	bug-bash@gnu.org
X-Mailman-Version	2.1.21
Precedence	list
List-Id	Bug reports for the GNU Bourne Again SHell <bug-bash.gnu.org>
List-Unsubscribe	<https://lists.gnu.org/mailman/options/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=unsubscribe>
List-Archive	<http://lists.gnu.org/archive/html/bug-bash/>
List-Post	<mailto:bug-bash@gnu.org>
List-Help	<mailto:bug-bash-request@gnu.org?subject=help>
List-Subscribe	<https://lists.gnu.org/mailman/listinfo/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=subscribe>
Xref	csiph.com gnu.bash.bug:14076

Show key headers only | View raw

Op 01-05-18 om 19:36 schreef Chet Ramey:
> OK, so which is it? Does an assignment statement preceding a special
> builtin in a shell function create a local variable (as we discussed
> just yesterday)

Huh? That was about 'typeset'/'declare'. How is that relevant here?

>  or does it create a global variable because `Posix'?

Yes. POSIX does not specify local variables at all, and even in a bash 
context I see nothing there to indicate that it should be local.

The possibility that 'foo=bar :' might create a variable 'foo' that 
survives the ':' command, is exported, *and* is local to the function, 
hadn't occurred to me at all. POSIX is pretty strange sometimes but not 
*this* strange.

- M.

Back to gnu.bash.bug | Previous | Next | Find similar | Unroll thread

Thread

Re: [BUG] 'unset' fails silently under specific conditions Martijn Dekker <martijn@inlv.org> - 2018-05-01 23:27 +0100

csiph-web