This code converts epub file to txt file:

ebook-convert "book.epub" "book.txt"

How can I use it to convert all .epub files in the directory?

I am using Ubuntu.


from os import listdir, rename
from os.path import isfile, join
import subprocess

# return name of file to be kept after conversion.
# we are just changing the extension. azw3 here.
def get_final_filename(f):
    f = f.split(".")
    filename = ".".join(f[0:-1])
    processed_file_name = filename+".azw3"
    return processed_file_name

# return file extension. pdf or epub or mobi
def get_file_extension(f):
    return f.split(".")[-1]

# list of extensions that needs to be ignored.
ignored_extensions = ["pdf"]

# here all the downloaded files are kept
mypath = "/home/user/Downloads/ebooks/"

# path where converted files are stored
mypath_converted = "/home/user/Downloads/ebooks/kindle/"

# path where processed files will be moved to, clearing the downloaded folder
mypath_processed = "/home/user/Downloads/ebooks/processed/"

raw_files = [f for f in listdir(mypath) if isfile(join(mypath, f))]
converted_files =  [f for f in listdir(mypath_converted) if isfile(join(mypath_converted, f))]

for f in raw_files:
    final_file_name = get_final_filename(f)
    extension = get_file_extension(f)
    if final_file_name not in converted_files and extension not in ignored_extensions:
        print("Converting : "+f)
            s = rename(mypath+f, mypath_processed+f)
        except Exception as e:
        print("Already exists : "+final_file_name)
  • 2
    Read man find. – ctrl-alt-delor Mar 9 at 15:10
  • Thnx, i tried find but something wrong. – silver Mar 9 at 15:15
  • 3
    Show us what you tried, and what went wrong. – ctrl-alt-delor Mar 9 at 15:17

For files in a single directory (without recursing into subdirectories) you shouldn't need anything more than a simple shell loop e.g.

for f in ./*.epub; do
  ebook-convert "$f" "${f%.epub}.txt"

The shell parameter expansion ${f%.epub} removes the trailing .epub so that you may add the .txt file extension.

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