Hello, I don't know from personal experience but did run across a different thread that pointed me at this keen little PHP utility for RSS feeding ... there's also a link in one of the posts down the page for another utility for reading RSS feeds. If you just want to understand the general framework around RSS, I would Google it.
Since RSS feeds are XML files then you can get the format and do the necessary with SimpleXML. I once was finding API(or format whatsoever you call it) for podcasts which are kinda feeds and didn't find one so if you find it drop here also ;)
I am writing a java program that needs to execute shell commands, so I wrote a function that would take the command to execute as a string (ie: "mkdir ~/Folder1") and execute that command with the shell. Here is the function:
Runtime run = Runtime.getRuntime();
Process pr = ...