There are many ways to get the last character from a string :

  use strict;
  my $string = "Hello World";
  my $char;

  # Use a capturing parenthesis
  $char = $1
    if ($string =~ /(.)\Z/);
  print ">>$string<<\n";
  print "[[$char]]";

  # Chop the last char away from $string
  # this modifies $string
  $char = chop $string;
  print ">>$string<<\n";
  print "[[$char]]";

  # use substr :
  $char = substr($string,-1);
  print ">>$string<<\n";
  print "[[$char]]";
[download]

perl -MHTTP::Daemon -MHTTP::Response -MLWP::Simple -e ' ;    # The  
$d = new HTTP::Daemon and fork and getprint $d->url and exit;#spider
($c = $d->accept())->get_request(); $c->send_response( new   #in the
HTTP::Response(200,$_,$_,qq(Just another Perl hacker\n))); ' #  web
[download]