Re: How to test if a variable is declared?

[Chet Ramey]

On 3/13/22 1:25 PM, Koichi Murase wrote:
> 2022年3月14日(月) 0:02 Alex fxmbsw7 Ratchev <fxmbsw7@gmail.com>:
> > [[ -v var ]] || printf not\\n
>
> This thread is continued from the discussion two years ago. See the
> original post of this thread where the reason that -v cannot be used
> is explained: https://lists.gnu.org/archive/html/help-bash/2020-03/msg00015.html

That discussion remains unpersuasive, and this doesn't add anything new.
Peng resolutely refuses to use any of the existing mechanisms that can do
what he wants. It's a niche request, at least so far, and there is already
a way to do it.

--
``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/