From: Bart Schaefer <schaefer@brasslantern.com>
To: Samuel Bancal <Samuel.Bancal@epfl.ch>,
Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: broken pipe message with setopt PRINT_EXIT_VALUE
Date: Fri, 28 May 2021 14:26:25 -0700 [thread overview]
Message-ID: <CAH+w=7a+=gPiFVTuAEXo0b04N-vmT4zMxNX0+MeC==-Kxrp8HA@mail.gmail.com> (raw)
In-Reply-To: <20210528200137.nw35xglpw7j2j4r7@chazelas.org>
On Fri, May 28, 2021 at 1:02 PM Stephane Chazelas <stephane@chazelas.org> wrote:
>
> In both cases, tr/yes are being killed (with a SIGPIPE) because
> they're trying to write to a pipe that has no reader. [...]
>
> Which is printed (or rather here the "broken pipe" message
> corresponding to that death-by-SIGPIPE) because of
> PRINT_EXIT_VALUE.
Which is exactly what's supposed to happen when you have that set.
You can run the pipeline in a subshell to suppress this behavior:
( < /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c 32; echo )
PRINT_EXIT_VALUE is disabled in subshells because subshells do not
normally maintain a jobs table like an interactive shell does.
next prev parent reply other threads:[~2021-05-28 21:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-28 17:06 Samuel Bancal
2021-05-28 20:01 ` Stephane Chazelas
2021-05-28 21:26 ` Bart Schaefer [this message]
2021-05-29 6:37 ` Samuel Bancal
2021-05-29 11:43 ` Daniel Shahaf
2021-05-29 15:52 ` Bart Schaefer
2021-05-30 12:29 ` Daniel Shahaf
2021-05-30 17:44 ` Bart Schaefer
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