find duplicate files

find -not -empty -type f -printf "%s\n" \
  | sort -rn \
  | uniq -d \
  | xargs -I{} -n1 find -type f -size {}c -print0 \
  | tee \
  | pv --line-mode --size $(find . -type f | wc -l) \
  | xargs -0 md5sum \
  | sort \
  | uniq -w32 --all-repeated=separate \
  | tee /tmp/duplicates