Re: extglob and ()/{}

[Peng Yu]

On Mon, Apr 5, 2021 at 8:23 PM Marco Ippolito <maroloccio@gmail.com> wrote:
>
> Greg said it all:
>
> > extglob changes the way certain characters are parsed. It is necessary to
> > have a newline (not just a semicolon) between shopt -s extglob and any
> > subsequent commands to use it. You cannot enable extended globs inside a
> > group command that uses them, because the entire block is parsed before the
> > shopt is evaluated.

So the bottomline is not to use `shopt -s extglob` in () and {}
blocks? If one wants to use `shopt -s extglob`, it must be outside of
() and {} blocks?

> > Note that the typical function body is a group command.
> > An unpleasant workaround could be to use a subshell command list as the
> > function body.

-- 
Regards,
Peng