Scriptnya sederhana sekali, kita bisa lihat di helpnya dan bisa cepat diaplikasikan. Sebelum menjalankan atau membuat script ini pastikan GD:Graph lib sudah terinstall di komputer, cara ngistalnya bisa tanya suhu google :)
 #!/usr/bin/perl -w
        use strict;
use CGI;
use GD::Graph::bars;
my $q = new CGI;
my $graph = new GD::Graph::bars( 1200, 700 );
my @data =  read_data("direktory tempat data berupa text file");    $graph->set(
                              title             => "Disk Usage Bar chart (%) ",
    x_label           => "disk name",
    y_label           => "disk %",
    long_ticks        => 2,
    y_min_value       => 0,
    x_label_position  => 0.5,
    x_labels_vertical => 1,
    x_tick_offset     => 3,
    bar_spacing       => 1,
    line_width        => 1,
    show_values       => 1,
    dclrs             => [qw(lgreen lred)],
);
        my $gd_image = $graph->plot( \@data );
print $q->header( -type => "image/png", -expires => "-1d" );
          binmode STDOUT;
print $gd_image->png; 
  sub read_data
  {
          my $fn = shift;
  my @d = ();
  open(DATA, $fn)  || return ();
while ()
  {
    chomp;          my @row = split / /;
    for (my $i = 0; $i <= $#row; $i++)
      {
          undef $row[$i] if ($row[$i] eq 'undef');
      push @{$d[$i]}, $row[$i];
      }
    }
      close (DATA);
  return @d;
  }
Kalo diexecute hasilnya kurang lebih begini:
