I currently have a folder full of epubs that I would like to read, a folder of epubs I’ve already read and would like to read again, and a corresponding file with the names of the epub files in each. The problem is, these folders are on my external hard-drive only. What I want to do is to have my script parse the list of epubs in these folders and create an up-to-date copy in my downloads folder, where another bit of code will take care of any copies I download if I forget that I already have a copy in my library.