#!/usr/bin/perl use CGI; $cgi = new CGI; print $cgi->header(-type=>'text/html'); print $cgi->start_html(-title=>'Is it running under Mod_perl?', -bgcolor=>'white', -textcolor=>'black', ); print "

It's running "; if (exists $ENV{MOD_PERL}) { print "mod_perl!\n"; } else { print "CGI!\n"; }; print "

\n"; print "
    \n"; while (($key, $val) = each %ENV) { print "
  1. $key : $val\n"; } print "
\n"; print $cgi->end_html;