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Fri, 28 May 2021 14:26:36 -0700 (PDT) MIME-Version: 1.0 References: <20210528200137.nw35xglpw7j2j4r7@chazelas.org> In-Reply-To: <20210528200137.nw35xglpw7j2j4r7@chazelas.org> From: Bart Schaefer Date: Fri, 28 May 2021 14:26:25 -0700 Message-ID: Subject: Re: broken pipe message with setopt PRINT_EXIT_VALUE To: Samuel Bancal , Zsh hackers list Content-Type: text/plain; charset="UTF-8" X-Seq: 48945 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: On Fri, May 28, 2021 at 1:02 PM Stephane Chazelas 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.