Are you unsure how to read RSS feeds? Why don't you just mount them? What does this software do?
It will mirror RSS and Atom feeds as file systems. Example file system structure for one feed with two articles:
/tmp/mnt/rssfs/Open Source Feed/Hello World.html
/tmp/mnt/rssfs/Open Source Feed/Second Article.html
https://github.com/dertuxmalwieder/rssfs
#go