: Re: How to rename epubs when the file name is a numeric string? I have a number of EPUB titles that need renaming, from the likes of "1631214659.epub" to "Moon's Napa and Sonoma" and so on. They

@RevWendy

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The question is not too clear.

Is it the case that you simply want to
rename the file containing the epub book, so that the name of the file
is then the title of the book with the suffix .epub? That can be
done very simply, using a command that extracts the book title from
the file (see Command line extraction of metadata (title. author) from epub file), and
make it the new file name. The exact command depends on your operating
system (I run Linux). Supposing your file is called 12345.epub, in
Linux shell (command line) you would write:

mv 12345.epub "`exiftool -T -Title 12345.epub`".epub

Of course this can be iterated over a list of files, or all the files in a directory. I did some tests that worked.

exiftool is a very general command to extract metadata from files. It is written in Perl (my quick guess) and I expect it to be available in all environments.

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