On Wed, 6 Jul 2022 at 08:34, Yair Lenga <[email protected]> wrote:
> in general, for complex scripts, I prefer to move the ‘main’ logic into a
> function (‘main’, ‘run’,…). This make it possible to keep clean name space.
> Otherwise, all the main variables are becoming global: see below for ‘x’.
> With many variables, it can be ugly.
>
> Function main () {
> Local x. # x is local
> For x in a b ; do process $x ; done
> }
>
> Vs.
> # x is global, all function will see it.
> For x in a b ; do process $x ; done
>
Unfortunately that's not how "local" works. In both cases the variable "x"
is visible to (and modifiable by) everything that is called from "main"; so
everything is inside the "main" function, "local" there is quite
indistinguishable from true global.
-Martin
