ebook-organize

#!/bin/sh
#
# NAME
#
#   ebook-organize - rename and organize all ebooks in a directory
#
# SYNOPSIS
#
#   ebook-organize <dir>...
#
# DESCRIPTION
#
#   ebook-organize renames and classifies all ebooks in a directory.
#   Each book will be put in a path of the form
#
#     <directory>/<author>/<title>/<title>.<extension>
#
#   Directories will be created if they don't exist.
#
# DEPENDENCIES
#
#   ebook-meta(1)
#

[ "$*" ] || {
    echo >&2 "usage: ${0##*/}: ebook-organize <dir>..."
    exit 1
}

for dir
do
    find "$dir" -type f -name '*.azw'    \
                     -o -name '*.azw1'   \
                     -o -name '*.azw3'   \
                     -o -name '*.azw4'   \
                     -o -name '*.epub'   \
                     -o -name '*.fb2'    \
                     -o -name '*.kf8'    \
                     -o -name '*.lit'    \
                     -o -name '*.mobi'   \
                     -o -name '*.pdb'    \
                     -o -name '*.prc'    |
    while IFS= read -r ebook
    do
        metadata=$(ebook-meta "$ebook" 2>/dev/null)

        # Canonicalize author name and title.
        author=$(printf "%s" "$metadata" |
                 grep '^Author(s) *:'    |
                 sed 's/^Author(s) *://
                      s/ [[&].*//
                      s/\(.*\), \(.*\)/\2 \1/
                      s/[[:space:]]\{1,\}/ /g
                      s/^[[:space:]]*//
                      s/[[:space:]]*$//')
        title=$(printf "%s" "$metadata"  |
                grep '^Title *:'         |
                sed 's/^Title *://
                     s/: .*$//
                     s/[[:space:]]\{1,\}/ /g
                     s/^[[:space:]]*//
                     s/[[:space:]]*$//')

        if [ -z "$title" ] || [ -z "$author" ]
        then
            echo >&2 "${0##*/}: error extracting metadata from $ebook"
            continue
        fi

        mkdir -v -p -- "${dir}/${author}/${title}"
        mv -v -- "$ebook" "${dir}/${author}/${title}/${title}.${ebook##*.}"
    done
done