Creates torrent files for every folder in the current directory with provided announce_url in the first argument

mktor4dir.sh

#!/bin/bash

ANNOUNCE_URL=$1

if [ -z "$ANNOUNCE_URL" ]; then
	echo "Announce url is undefined, please provide it as an argument";
	exit 1;
else 
	echo "Provided announce url is: \`"$ANNOUNCE_URL"\`";
fi

find . -type d -print0 | while IFS= read -r -d '' folder; do    
	if ! [[ . -ef $folder ]]; then
		echo $'\t'"Do: "$folder;
		mktorrent -a $ANNOUNCE_URL --no-date -o "$folder"".torrent" -p "$folder";
		echo $'\n';
	fi
done

meant to be ideal for cross-seeding, but I'm having an issue with matching the piece size of the generated torrent with the "original" torrent file.