find -type f -size +3M -print0 | while IFS= read -r -d '' i; do
  #echo $i
  echo -n '.'
  if grep -q "$i" md5-partial.txt; then
    echo -n ':'; #-e "\n$i  ---- Already counted, skipping.";
    continue;
  fi
  #md5sum "$i" >> md5.txt
  MD5=`dd bs=1M count=1 if="$i" status=none | md5sum`
  MD5=`echo $MD5 | cut -d' ' -f1`
  if grep "$MD5" md5-partial.txt; then echo -e "Duplicate: $i"; fi
  echo $MD5 $i >> md5-partial.txt
done


## Show the duplicates
#sort md5-partial.txt | uniq  --check-chars=32 -d -c
#sort md5-partial.txt | uniq  --check-chars=32 -d -c | sort -b -n
#sort md5-partial.txt | uniq  --check-chars=32 -d -c | sort -b -n | cut -c 9-40 | xargs -I '{}' sh -c "grep '{}'  md5-partial.txt && echo"

## Show wasted space
if [ false ] ; then
  sort md5-partial.txt | uniq  --check-chars=32 -d -c | while IFS= read -r -d '' LINE; do
    HASH=`echo $LINE | cut -c 9-40`;
    PATH=`echo $LINE | cut -c 41-`;
    ls -l '$PATH' | cud -c 26-34
  done
fi