http://my.server.com/multipage.pl?page=1

##</code><code>##

   my $qstr = $ENV{QUERY_STRING};

##</code><code>##

   use CGI
   my $cgi = CGI::new() or die "Can't load new CGI";
   my $page = $cgi->param('page');

##</code><code>##

   <a href="http://my.server.com/multipage.pl?page=2">Show page 2</a>

##</code><code>##

   print "Content-type: text/html\n\n";