Scan your iTunes apps folder for O'reilly/Stanza-based ebook apps and converting them to standard EPUB format.
Inspired by this post: [https://blog.dantup.com/2010/07/dirt-cheap-oreilly-ebooks-for-any-device]
apps2epub [target dir] - Scan iTunes for ebooks apps. When target dir is specified, write out the EPUB files.
Works on my Mac (tm).