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Re: bug attached
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From: |
Chet Ramey |
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Subject: |
Re: bug attached |
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Date: |
Wed, 30 Aug 2023 10:58:03 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.14.0 |
On 8/30/23 8:40 AM, queency3 jones wrote:
> Bash Version: 5.0
> Patch Level: 3
> Release Status: release
>
> Description:
>
> function sub { aa=8;return_value=$aa; }
> function sub { aa=8; }
>
> function main { aa=3;sub;aa=$(($aa+1));printf "$aa\n"; }
>
>
> calling main will print 9 instead of 4
What behavior do you expect and why? The bash behavior is correct, since
you have no local variables and all functions share the global variable
`aa' and its value.
--
``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/