Copy the program and save it to a file, webserver.pl is fine. Make the file executable. Make sure you have the priviledge to tie up a port. Run the file. The web server will now be running on port 8088. You will most likely need to access it via the IP address of the computer your mini web server is running on. For example:

http://127.0.0.1:8088

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)