From: Vincent Lefevre <vincent@vinc17.net>
To: zsh-users@zsh.org
Subject: Re: kill the LHS command of a pipe once the RHS command terminates
Date: Mon, 29 Jul 2019 17:23:09 +0200 [thread overview]
Message-ID: <20190729152309.GA17940@cventin.lip.ens-lyon.fr> (raw)
In-Reply-To: <20190628110430.GA13790@zira.vinc17.org>
On 2019-06-28 13:04:30 +0200, Vincent Lefevre wrote:
> * With a process substitution:
>
> zira% head -n 1 <(echo foo; sleep 3; echo err >&2)
> foo
> zira%
Another issue is that if the producer side tries to access the terminal
(e.g. ssh, for a passphrase), all the processes of this side are stopped
due to a SIGTTOU signal.
Concerning the documentation, the zshexpn(1) man page does not say
that a process in process substitution is run in background. Later
there's a mention of it being run asynchronously, but this term has
never been defined.
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
next prev parent reply other threads:[~2019-07-29 15:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-28 11:04 Vincent Lefevre
2019-06-28 11:38 ` Vincent Lefevre
2019-06-29 16:17 ` Bart Schaefer
2019-07-06 23:55 ` Vincent Lefevre
2019-07-07 4:54 ` Bart Schaefer
2019-07-09 10:08 ` Vincent Lefevre
2019-07-09 10:54 ` Vincent Lefevre
2019-07-29 15:23 ` Vincent Lefevre [this message]
2019-07-29 15:54 ` Bart Schaefer
2019-07-29 20:48 ` Vincent Lefevre
2019-07-30 0:00 ` Bart Schaefer
2019-07-30 0:17 ` Vincent Lefevre
[not found] <20190628110430.GA13790__36317.6205357135$1561719956$gmane$org@zira.vinc17.org>
2019-06-28 18:41 ` Stephane Chazelas
2019-06-29 1:24 ` Vincent Lefevre
2019-06-29 15:30 ` Stephane Chazelas
2019-07-06 23:49 ` Vincent Lefevre
2019-07-29 23:08 ` Vincent Lefevre
2019-07-29 23:15 ` Vincent Lefevre
2019-07-29 23:42 ` Bart Schaefer
2019-07-30 0:40 ` Vincent Lefevre
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190729152309.GA17940@cventin.lip.ens-lyon.fr \
--to=vincent@vinc17.net \
--cc=zsh-users@zsh.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).