MD5: Check md5 of all files from a directory

checkMD5Dir.sh

#!/bin/bash

# Check md5 from all files in a dir. It assumes that for each file "filename.txt" there exists a "filename.txt.md5" corresponding file

FILES=`ls *`
for f in $FILES
do
        # echo "Processing $f"
        MD5=`md5 $f`
        TRUE_MD5=`cat $f.md5`
        if [ "$MD5" == "$TRUE_MD5" ];
        then
                echo "File $f : OK";
        else
                echo "MD5 is NOT valid on file $f"
        fi
done