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Re: set -u not working as expected
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From: |
Chet Ramey |
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Subject: |
Re: set -u not working as expected |
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Date: |
Sun, 2 Aug 2020 16:57:24 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 8/2/20 4:01 AM, Oğuz wrote:
> $ set -u
> $ unset foo bar
> $ typeset -i foo bar
> $
> $ foo+=foo+1
> $
> $ foo+=bar+1
> bash: bar: unbound variable
>
> Only referencing `bar' triggers the _unbound variable_ error, it makes
> sense that the name being assigned is immune to that.
You could make a decent case that this is a bug in bash, I suppose, but
I am comfortable with the current behavior.
--
``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/
Re: set -u not working as expected, Chet Ramey, 2020/08/02
Re: set -u not working as expected, Chet Ramey, 2020/08/02