From: Kamil Dudka <kdudka@redhat.com>
To: Peter Stephenson <p.stephenson@samsung.com>
Cc: zsh-workers@zsh.org
Subject: Re: [BUG] 'exec' runs shell functions and builtins
Date: Mon, 14 Aug 2017 09:19:20 +0200 [thread overview]
Message-ID: <14882977.bakpPfWbpK@kdudka-nb> (raw)
In-Reply-To: <20170811162501.67a00cda@pwslap01u.europe.root.pri>
On Friday, August 11, 2017 16:25:01 Peter Stephenson wrote:
> On Fri, 11 Aug 2017 17:10:12 +0200
>
> Kamil Dudka <kdudka@redhat.com> wrote:
> > It is good that zsh does not need this in its native configuration but
> > how is it supposed to work in the POSIX emulation mode now?
> >
> > % (exec cd)
> > % emulate sh
> > % (exec cd)
> > zsh: command not found: cd
> >
> > If I understand http://www.zsh.org/mla/workers/2017/msg01138.html
> > correctly, then the above command should work?
>
> I can't actually think of a useful application of the above that would
> make "work" meaningful. What's the "exec" supposed to be doing? Who
> would even try to exec a builtin, even if they discover that for some
> bizarre reason the standard says you can? The one possible use of
> "exec" in that case might be to ensure you're *not* using a builtin ---
> but apparently you are? What?
>
> pws
Thanks for the reply! It did not make much sense to me either but I am by
no means expert in this area. In fact I hoped to hear some explanation on
this list because the topic had been raised here recently. Given the lack
of information about the reasoning behind the strange POSIX requirement, I
agree to keep the behavior of zsh as it is now.
Kamil
prev parent reply other threads:[~2017-08-14 7:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170725221050epcas4p131de822f47289e279c7de12de0d6c127@epcas4p1.samsung.com>
2017-07-25 21:49 ` Martijn Dekker
2017-07-26 9:23 ` Peter Stephenson
2017-07-26 9:27 ` Peter Stephenson
2017-07-26 12:53 ` Peter Stephenson
2017-08-04 15:34 ` Stephane Chazelas
2017-07-26 17:46 ` Bart Schaefer
2017-07-26 17:48 ` Bart Schaefer
2017-07-27 9:02 ` Peter Stephenson
2017-07-28 17:58 ` Bart Schaefer
2017-08-11 15:10 ` Kamil Dudka
2017-08-11 15:25 ` Peter Stephenson
2017-08-14 7:19 ` Kamil Dudka [this message]
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