Hi Davidfor, Rev. Bob and Terisa de Morgan.
Thanks for your kind concern, I do see and understand your points so let me give you more background on my particular taste.
As per my knowledge, Calibre don't detect, edit, update or remove jackets whose filename is written in another language rather than english. This means that I have to manually check each and every file with Sigil or Calibre "Edit epub" tool to remove such duplicated jackets. This can be really tiresome
as my book collection is rather large, exactly 4179 books right now, all obtained from many different places with many different jacket schemes, font sizes, paragraph sizes........
As I said I understand your view, but my intention is explicitly this:
"Removing certain named files to avoid having duplicate covers and synopsis".
Spanish filenames are used only for certain files that calibre will generate anyway, so I'm not really concerned about potentially deleted files. It is very unlikely and "original_epub" can be used to bring the missing pages back. A list is needed to manually set which files to remove, though.
To be honest, I will probably die from age before finishing reading half of them, given that my little fiddling around with Kiwidude plugin with a limited set of books was successful I'm willing to apply it to all my books.
I just though that this could be useful for someone else but I can't know if there is much request about this feature.
Davidfor: Thanks for your kind update. I had no idea about how to code with Python. Since my first try worked perfectly I left it as is, but I will gladly update with your suggestion.
Oh, at last I regret to say that I forgot to use a real nice word that should be mandatory when requesting things: "Please".
Thank you all and have a nice weekend
Edit: I overlooked a particular point on Davidfor post. Yes, I do think that this needs to have an option to select what filenames to remove if found, we just can't leave this as is. I'm sorry I missed it. I have added the clarification on the post.