From: Stephane Chazelas <stephane_chazelas@yahoo.fr>
To: zsh-users@zsh.org
Subject: Re: wait for the next process to finish
Date: Tue, 13 Dec 2011 17:45:00 +0000 [thread overview]
Message-ID: <20111213174500.GA24623@yahoo.fr> (raw)
In-Reply-To: <20111212154601.GA5198@cosy.cit.nih.gov>
2011-12-12 10:46:01 -0500, Anthony R Fletcher:
> I just realised that the 'wait' command will either wait for specified
> jobs or all jobs and nothing in between. The manual says "If job is not
> given then all currently active child processes are waited for.".
>
> So
> sleep 30 &
> sleep 10 &
> sleep 30 &
> sleep 30 &
> wait
> waits for all the sleeps to finish.
>
> How can I wait for just the next job to finish?
[...]
What about:
{
(sleep 4; echo A) &
(sleep 1; echo B) &
(sleep 8; echo C) &
(sleep 2; echo D) &
(sleep 7; echo E) &
(sleep 3; echo F) &
} | while read task; do
date +"%T: $task finished"
done
17:44:17: B finished
17:44:18: D finished
17:44:19: F finished
17:44:20: A finished
17:44:23: E finished
17:44:24: C finished
--
Stephane
prev parent reply other threads:[~2011-12-13 17:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 15:46 Anthony R Fletcher
2011-12-12 16:37 ` TJ Luoma
2011-12-12 19:41 ` Wayne Davison
2011-12-13 7:15 ` Martin Richter
2011-12-13 16:07 ` Rory Mulvaney
2011-12-13 16:45 ` Jérémie Roquet
2011-12-13 16:59 ` Anthony R Fletcher
2011-12-13 18:08 ` Daniel Shahaf
2011-12-13 16:49 ` Christoph (Stucki) von Stuckrad
2011-12-13 17:31 ` Bart Schaefer
2011-12-13 17:04 ` Rory Mulvaney
2011-12-13 17:32 ` Anthony R Fletcher
2011-12-13 18:04 ` Jérémie Roquet
2011-12-13 18:20 ` Stephane Chazelas
2011-12-13 19:19 ` Anthony R Fletcher
2011-12-13 10:01 ` Peter Stephenson
2011-12-13 17:10 ` Bart Schaefer
2011-12-13 20:42 ` Rory Mulvaney
2011-12-13 17:45 ` Stephane Chazelas [this message]
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=20111213174500.GA24623@yahoo.fr \
--to=stephane_chazelas@yahoo.fr \
--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).