programming-examples/perl/CGI/$ENV{'HTTP_USER_AGENT'}, $ENV{'SERVER_PROTOCOL'}, $ENV{'HTTP_HOST'}.pl

#!/usr/bin/perl

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

print "Your browser is a $ENV{'HTTP_USER_AGENT'} <BR>";
print "The Server Protocol is $ENV{'SERVER_PROTOCOL'}<BR>";
print "The HTTP Host is $ENV{'HTTP_HOST'}<BR>";