directory="${1}"

total_lines=0
while IFS= read -r -d '' file; do
    lines=$(wc -l < "$file")
    total_lines=$((total_lines + lines))
    echo "File '$file' includes $lines lines"
done < <(find "$directory" -name "*.jsonl" -type f -print0)
echo
echo "All lines from directory ${directory}: $total_lines"