That's right. I did all. But when I submit showme.pl, indicated in action, pops up in the browser. I can't understand how it should work as a server code.
I usually invoke a pl/cgi code through the local host url on my local web server and this code creates the client html on the browser. Now the html file and the code a separate. I am missing something certainly in my knowledge. I would be really grateful if you explain me how it works in your version.