given a download directory in Tachiyomi, prepare it for creating a cbz archive

prepare_cbz.sh

#!/bin/bash
find -name '.nomedia' -delete

for i in *; do
	newname=$(echo "$i" | sed -r 's/.*Ch\.([0-9]+)\.?([0-9]*).*$/\1 \2/' | awk '{ printf("%05d%02d", $1, $2) }')
	mv "$i" "$newname";
done

find -name '*.png' -print0 -or -name '.jpg' -print0 | while IFS= read -r -d '' file; do d=`dirname $file`; b=`basename $file`; mv "$file" "${d}/${d}_${b}"; done