echo "cat fields  | tee /dev/tty| tr 'a-z' 'A-Z' | tee /dev/tty | tr 'A-Z' 'a-z' \n"
cat fields  | tee /dev/tty | tr 'a-z' 'A-Z' | tee /dev/tty | tr 'A-Z' 'a-z'