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Re: declare XXX=$(false);echo $?

From: Chet Ramey
Subject: Re: declare XXX=$(false);echo $?
Date: Mon, 5 Dec 2022 09:16:09 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.5.1

On 12/2/22 8:26 PM, Martin D Kealey wrote:

If anything is weird, it's that simple (bare) assignments set $? to 0
UNLESS there's a command substitution providing a status.

Why not, if the assignment is performed successfully? POSIX says all errors
in that context are fatal for non-interactive shells, but interactive
shells continue.

``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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