md5sum expanded to work for directories

md5sum_dir

#!/bin/bash

md5_folder() {
        {
                # Print md5 hash of every file
                find "$1" -type f -print0 | sort -z | xargs -0 md5sum
                # Print the names of all files and directories
                find "$1" -printf %P\\0
        } | md5sum | awk '{print $1}'
}

while [[ "$#" -gt 0 ]]
do
        echo $(md5_folder "$1") "$1"
        shift
done