Re: How to test if a variable is declared?

[Dennis Williamson]

> >
> >> On Fri, Mar 13, 2020 at 9:01 AM Peng Yu <pengyu.ut@gmail.com> wrote:
> >>
> >>> I am trying to use bash efficiently. I am not saying that I have seen
> >>> CPU
> >>> as a concern in a real application.
>
> --
> Regards,
> Peng
>


Premature optimization.

>