There are some books with
azw3 formats on my calibre library which I want to convert them to
epub and I prefer to do it from command line.
I'm able to convert books using
ebook-convert but I don't know how to add
epub book to calibre.
calibredb add doesn't work since it considers the
epub as duplicate which is true. But I want to see if there is a way to add the book as a new format to calibre library before messing with calibre
- book id
- epub path
- to add the epub to an existing entry