Global variables, and their scope in Bash.

[Lachlan Musicman]

On Mon, Dec 14, 2009 at 11:22, Ray Parrish <crp at cmc.net> wrote:
> Hello,
>
> I have a global variable called LoopCount, that I want to access, and
> write to in four different functions. The functions are as follows, [not
> actual code, just showing function names] -
>
> ReadintoArray [
>     # Loop with LoopCount, then reset it to zero.
> }
> WriteTopSection {
>     # Loop with LoopCount, then decrement it one.
> }
.....
> Then perversely the ending value of LoopCount does not get carried
> forward from WriteTopSection to WriteDescriptionSection, but instead is
> once again at the value of zero.

that would be because you are decrementing by 1 as you loop LoopCount times?

> Why in the world can my ReadintoArray function modify the value of the
> global variable LoopCount, but the next function down cannot?
>
> Does anyone have any light they can shed on the behavior of global
> variables in Bash?
>
> Thanks, Ray Parrish
>
>
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