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From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: Pier Paolo Grassi <pierpaolog@gmail.com>,
	Zsh-Users List <zsh-users@zsh.org>
Subject: Re: read string containing null
Date: Thu, 21 Oct 2021 14:08:41 +0100 (BST)	[thread overview]
Message-ID: <899710302.733700.1634821721465@mail2.virginmedia.com> (raw)
In-Reply-To: <CAP+y1xC9243rukfuZ9m64PMrZJD4O3eP-cu3s9noqXnFak7=KQ@mail.gmail.com>

> On 21 October 2021 at 13:35 Pier Paolo Grassi <pierpaolog@gmail.com> wrote:
> Hello, I just found out:
> echo -e - a$'\000'b | IFS='' builtin read -r -d '' xx; echo -n - $xx
> result is "a"
> is it possible for builtin read not to stop an null bytes? I found nothing
> in documentation.
> thanks

I think -d '' is telling it to treat NULL bytes as a delimiter.  Take that out.

If you're not trying to read a line, don't use read.  If you "zmodload zsh/system"
there's a sysread command which is more useful for lower level operations.


  reply	other threads:[~2021-10-21 13:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-21 12:35 Pier Paolo Grassi
2021-10-21 13:08 ` Peter Stephenson [this message]
2021-10-21 13:30   ` Pier Paolo Grassi
2021-10-22  9:05   ` Stephane Chazelas
2021-10-23  0:04     ` Bart Schaefer

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