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Re: Expected behavior of background jobs in ${ ... }

X-seq: zsh-workers 52200
From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
To: Zsh hackers list <zsh-workers@xxxxxxx>
Subject: Re: Expected behavior of background jobs in ${ ... }
Date: Mon, 2 Oct 2023 20:26:27 -0700
Archived-at: <https://zsh.org/workers/52200>
In-reply-to: <CAH+w=7aSVN5wx7qnjGxOyLRUjNODg_Hv6fPRZu1tgMKoD-+vFQ@mail.gmail.com>
List-id: <zsh-workers.zsh.org>
References: <CAH+w=7aSVN5wx7qnjGxOyLRUjNODg_Hv6fPRZu1tgMKoD-+vFQ@mail.gmail.com>

On Mon, Oct 2, 2023 at 5:48 PM Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx> wrote:
>
> echo ${ { echo foo; } & { echo bar; } & echo done; }
>
> Here ksh also discards the output of the background jobs and
> substitutes only "done", but that may be an order of operations thing.

Yep:

$ echo ${ { echo foo; } & { echo bar; } & sleep 3; echo done; }
[1]    293173
[2]    293174
foo bar done

References:
- Expected behavior of background jobs in ${ ... }
  - From: Bart Schaefer

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