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Re: which: command not found

X-seq: zsh-users 30402
From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
To: "Mark J. Reed" <markjreed@xxxxxxxxx>
Cc: Zsh Users <zsh-users@xxxxxxx>
Subject: Re: which: command not found
Date: Fri, 12 Dec 2025 09:20:44 -0800
Archived-at: <https://zsh.org/users/30402>
In-reply-to: <CAA=-s3xJ5iSmG1LESO_GGzAheJ3r7unYeOinYKJCMKquLWgP0Q@mail.gmail.com>
List-id: <zsh-users.zsh.org>
References: <CAA=-s3xJ5iSmG1LESO_GGzAheJ3r7unYeOinYKJCMKquLWgP0Q@mail.gmail.com>

On Fri, Dec 12, 2025 at 8:39 AM Mark J. Reed <markjreed@xxxxxxxxx> wrote:
>
> Why does the "command not found" output of `which` go to stdout?

The most recent discussion of this starts at workers/43523 from 2018,
at which point it was added to Etc/FAQ question 3.29.

Before that at workers/36330 in 2015, and on back to antiquity.

Follow-Ups:
- Re: which: command not found
  - From: Mark J. Reed

References:
- which: command not found
  - From: Mark J. Reed

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