Hello! Sorry fro my English. :) I have the next program: 

#!/usr/bin/perl

use strict;
use feature qw(say);
use warnings;
use utf8;
use Getopt::Long;


my ($helpCmdArgv, $configCmdArgv, $setupCmdArgv, $servertypeCmdArgv);

my $cmdArgsResult; 


$cmdArgsResult = GetOptions ( "help" => \$helpCmdArgv,
                              "config=s" => \$configCmdArgv,
                              "setup" => \$setupCmdArgv,
                              "servertype=s" => \$servertypeCmdArgv );

#  Condition 1
if ( (@ARGV eq 0) or ($helpCmdArgv eq 1) )  {

     say scalar(@ARGV);
     &Help;
}; 


#  Condition 2
    say scalar(@ARGV);
    ($configCmdArgv) ? say 'Custom config' : say 'Default config';



sub Help {

print <<HELP;

Avliable options:
            --config        - Main config file
            --setup         - Just install files.
            --servertype    - Server type, where:
                     
                  |->   db  - Database server;
                  |->   app - Application server;

HELP

exit 1;

};

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I want run program with options --help and without options. In both cases i want that my programm show me HELP MESSAGE (see Condition 1). But i need aslo to set arguments like this  ./install.pl --config main.cfg --setup (see Condition 2). But this not work, because @ARGV always zero and "Condition 2" never to be. I read that GetOpt ignor (or replace) standart ARGV. You can suggest me check "--config" and "--setup" in the "Condition 1". But I would like to avoid it. How to check for "--config main.cfg" when the user can execute the program with an empty argument? Thanks.

In reply to GetOpt::Long empty ARGV by Pazitiff

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