for dir in $(find . -type d -name 'bmc*' |cut -d"/" -f2 2> /dev/null) #chage the -name if you only want to do certain directories.
do
  cd ${dir}
  print "Current directory is :${dir}"
  for file in $( ls *r.jpg| cut -dr -f1 2> /dev/null)
      do
    print " running alchemy ${file}r.jpg ${file}q.jpg -jh40  -Xd600 -+ --."
         alchemy ${file}r.jpg ${file}q.jpg -jh40  -Xd600 -+ --.
      done
  cd ..
done