From: Peter Stephenson <p.stephenson@samsung.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: Re: multi-digit file descriptors
Date: Wed, 11 Feb 2015 17:46:05 +0000 [thread overview]
Message-ID: <20150211174605.43e6da33@pwslap01u.europe.root.pri> (raw)
In-Reply-To: <CAH+w=7aT7bpc=Z+h9dK_HBcoLytBg85syuC_TfTONZ-Rci7Dhw@mail.gmail.com>
On Wed, 11 Feb 2015 09:27:51 -0800
Bart Schaefer <schaefer@brasslantern.com> wrote:
> On Feb 11, 2015 8:28 AM, "Vincent Lefevre" <vincent@vinc17.net> wrote:
> >
> > The behavior of dash and ksh93 is similar to zsh. But is there any
> > reason?
>
> Zsh reserves descriptors 10 and up for internal use; for example, 10 is
> nearly always a copy of the original input terminal in an interactive shell.
You can grab use of one yourself with the recommended syntax (we
actually agreed this with David Korn):
local foo
exec {foo}>blah
echo bleugh >&$foo
and given what Bart mentioned we wouldn't be that keen to open it up
more widely.
Note there's nothing magic about foo, it just contains a number. So you
can do
local foo=12
exec {foo}>&-
etc.
pws
next prev parent reply other threads:[~2015-02-11 17:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-11 16:26 Vincent Lefevre
2015-02-11 17:27 ` Bart Schaefer
2015-02-11 17:46 ` Peter Stephenson [this message]
2015-02-12 10:24 ` Vincent Lefevre
2015-02-12 16:45 ` Bart Schaefer
2015-02-12 10:16 ` Vincent Lefevre
2015-02-13 4:21 ` Bart Schaefer
[not found] <20150211162637.GA9083__22180.4416658872$1423672129$gmane$org@xvii.vinc17.org>
2015-02-11 20:47 ` Stephane Chazelas
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