/home/UTKU/devel/my_script

##</code><code>##

/home/UTKU/devel/my_script/dir_one/my_package.pm
/home/UTKU/devel/my_script/dir_two/my_package.pm

##</code><code>##

#!/usr/bin/perl -w

BEGIN { push @INC, "/home/UTKU/devel/my_script" }
use Data::Dumper;
use dir_two::my_package;

print Dumper(\%my_hash);

##</code><code>##

$ ./my_script.pl
Name "main::my_hash" used only once: possible typo at ./my_script.pl line 9.
$VAR1 = {};

##</code><code>##

##! /usr/local/bin/perl
package my_package;

require(Exporter);
@ISA = qw(Exporter);
@EXPORT = qw(
             %my_hash
          );

%my_hash = (
...
);