Re: [Help-bash] Awkward behavior of empty arrays

[Chris F.A. Johnson]

On Thu, 31 Aug 2017, Cristian Zoicas wrote:

> Hello all
>
> I want to create arrays and use them (easily). I am especially
> interested in empty arrays and I felt very uncomfortable with them
> since I found some  counterintuitive or undocumented behaviors.  I
> provide some examples below.
>
> Example 1:
>
>    1 set -u;
>    2 unset A;
>    3 declare -a A=;

You have set A[0] to the empty string.

If you don't want to set A[0], use:

declare -a A ## No =


--
Chris F.A. Johnson, <http://cfajohnson.com>