Тож дописав цей скрипт для себе http://odoepner.wordpress.com/2011/10/08/bash-script-to-remove-css-from-epub/
#!/bin/bash
tmpfs_dir="/tmp/"
file=$1
if [[ $file != *.epub ]]
then
echo "Usage: $(basename $0) something.epub"
exit 0
fi
filebasename="$(basename "$file" .epub)"
location="$(dirname "`readlink -f "$file"`")/"
echo $location$filebasename
mkdir "$tmpfs_dir$filebasename"
unzip -d "$tmpfs_dir$filebasename" "$file" > /dev/null # < /dev/zero
find "$tmpfs_dir$filebasename" -iname *.css -exec rm {} \;
find "$tmpfs_dir$filebasename" -iname *.otf -exec rm {} \;
find "$tmpfs_dir$filebasename" -iname *.ttf -exec rm {} \;
find "$tmpfs_dir$filebasename" -iname cover.jpg -exec rm {} \;
cd "$tmpfs_dir$filebasename"
zip -r "$location${filebasename}_clean.epub" .
cd "$location"
rm -rf "$tmpfs_dir$filebasename"
$ find . -iname *.epub -exec bash ~/bin/optimize/epub_cleaner.sh "{}" \;
