$ cat 11149222.pl
#!/usr/bin/perl
use strict;
use warnings;
 
print "Content-type: text/html\n\n";
 
print "Hello World!";

$ perl 11149222.pl
Content-type: text/html

Hello World!$ perl -v | head -3

This is perl 5, version 34, subversion 0 (v5.34.0) built for x86_64-linux-thread-multi

$