icecream is a non-interactive stream download utility. It connects to icecast and shoutcast servers and redirects all fetched content to an stdin-capable player or to media files on your disk. With an option turned on, it can save the stream into different files, each representing the played track. It is also possible to tee the input to both disk and stdout.

portable perl software for listening to online shoutcast radio stations, while saving tracks to disk