$ ./qdiff.exe --help

qdiff - Patrik Hartlén

Arguments:
==========
  source      : Source directory
  s           : Short for source
  destination : Destination directory
  d           : Short for destination
  recursive   : Iterate recursive on source and destination
  r           : Short for recursive
  comparer    : Compare method:
              : [crc|size]
  c           : Short for Comparer
  mirror      : Mirror source to destination
  m           : Short for mirror
  i           : Ignore case
  l           : Follow symlinks

Sample:
qdiff --s=[source path] --d=[destination path] --c=crc -r