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Re: [Help-bash] Does declare -n support (associative) arrays?
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From: |
Chet Ramey |
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Subject: |
Re: [Help-bash] Does declare -n support (associative) arrays? |
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Date: |
Thu, 13 Dec 2018 09:07:29 -0500 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 12/12/18 11:43 PM, Peng Yu wrote:
> *The nameref attribute cannot be
> applied to array variables.*
>
> I am not sure if I understand the last sentence correctly. It seems a
> reference to an array can be assigned. What does the last sentence
> mean? Thanks.
It means you can't apply the nameref attribute to an existing array
variable:
$ cat ./x6
declare -A foo
declare -n foo
$ ./bash ./x6
./x6: line 2: declare: foo: reference variable cannot be an array
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU address@hidden http://tiswww.cwru.edu/~chet/