I have to read a configuration file that contains lines like these ones:

VAR=/path/to/
AMB=cer
DIRSKE=${VAR}${AMB}
SCRIPT=${DIRSKE}/script.sh
[download]

After a search, I found that module Appconfig can be the right one. I've read its documentation more and more, but I think I don't really understand how it works (honestly, it is a bit harder to read). Consider also that I'm only a beginner in Perl. My problem is the variable named DIRSKE. Appconfig can expand the value as in a shell script, but I can't understand how do it when I have two of them in the same line.

#!/usr/bin/perl

use strict;
use warnings;

use AppConfig qw(:expand);
my $config = AppConfig->new({
         CASE => 1,
         GLOBAL => {EXPAND => EXPAND_ALL}
         });

$config->define("VAR=s");
$config->define("AMB=s");
$config->define("DIRSKE=s"); # Maybe this is wrong, but what else?
$config->define("SCRIPT=s");

#read configuration file
$config->file("./file.conf");

#some print
print "Valore VAR -> ".$config->VAR()."\n";
print "Valore AMB -> ".$config->AMB()."\n";
print "Valore DIRSKE -> ".$config->DIRSKE()."\n";
print "Valore SCRIPT -> ".$config->SCRIPT()."\n";
[download]

The output is:

Valore VAR -> /path/to/
Valore AMB -> cer
Valore DIRSKE -> 
Valore SCRIPT -> /script.sh
[download]

I'd like to have something like:

Valore VAR -> /path/to/
Valore AMB -> cer
Valore DIRSKE -> /path/to/cer
Valore SCRIPT -> /path/to/cer/script.sh
[download]

Am I using the correct module?
If yes, can I have a suggestion on how to do it?

Thanks!

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