for attempts in one two three four;
  REMAINING=
  for file in $FILES; do
    echo
    echo "About to Retrieve $file from $SOU$SRDIR"
    echo "via $proxy"
    echo
    if ssh -x $proxy ftp "$SOU$SRDIR$file"; then
      echo " Retrieving file $file ..."
      scp -p $proxy:~/$file .
      chmod 666 $file
      ls -l $file
      ssh -x $proxy rm $file
    else
      echo "File transfer failed. Bummer. $err"
      echo "Trying again in 15 minutes"
      REMAINING="$REMAINING $file"
    fi
  done
  case $REMAINING in '') break;; esac
  FILES=$REMAINING
  sleep 900
done