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Re: export loses error

From: Chet Ramey
Subject: Re: export loses error
Date: Mon, 15 Feb 2021 09:16:22 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

On 2/14/21 4:03 AM, Stephane Chazelas wrote:
2021-02-09 10:23:51 -0500, Chet Ramey:
It's the assignment statement that's the oddball here; it's the only place
where the exit status from a command substitution has any effect. This is a
POSIX (maybe ksh) invention to provide assignment statements with a useful
exit status.

It was already like that in the Bourne shell, the shell that
introduced command substitution in the late 70s.

It appears so, albeit undocumented.

``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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