podget

Podcast aggregrator/downloader optimized for cron
Podget is a simple podcast aggregator optimized for running as a scheduled
background job (i.e. cron). It features support for downloading podcasts
from RSS & XML feeds, for sorting the files into folders &
categories, for importing URLs from iTunes PCAST files & OPML lists
automatic M3U & ASX playlist creation, and automatic cleanup of old files.
It also features automatic UTF-16 conversion for podcasts hosted on MS
Windows servers.
Run podget once to install the users configuration files to $HOME/.podget,
and then customize them there.