#!/usr/bin/perl
use strict;
use warnings;
#
my $pReqsca = "ABCD";
my @bytary = unpack 'C*', $pReqsca;                                         
my $binstr = '';                                                            
foreach my $scabyt (@bytary) {                                              
    my $intbyt = int($scabyt);                                              
    my $hexbyt = sprintf("%02X", $intbyt);                                  
    my $binbyt = unpack 'b8', $scabyt;                                      
    $binstr .= $binbyt;                                                     
    print "  Byte = [$scabyt]  Integer = [$intbyt]  Hex = [$hexbyt]  Binary = [$binbyt]  Binary String = [$binstr]\n";
    print "Aborting Loop\n";
    last;
}

##</code><code>##

W:\Steve\PerlMonks>perl sopw-584100.pl
  Byte = [65]  Integer = [65]  Hex = [41]  Binary = [01101100]  Binary String = [01101100]
Aborting Loop