I don't think there is such tutorial, if so i also like to know :)

What you can do is:

• create a CGI script like suggested in other post, which should create an HTML form. Let's call it myform.pl
• put it on your webserver in cgi-bin dir. or any other dir. which is configured to execute scripts.
• access your script with: http://www.yourserver.com/cgi-bin/myform.pl
• Once you filled in the form and hit the submit button, you can get the user input and process it, send response back to user.