upload.bat

set FTP_hostname=12.34.56.78
set FTP_username=1337h4x0r
set FTP_password=rosebud
set FTP_remote_dir=screenshots

echo user %FTP_username%> ftpcmd.dat
echo %FTP_password%>> ftpcmd.dat
if defined FTP_remote_dir (
  echo cd %FTP_remote_dir%>> ftpcmd.dat
)
echo put %1>> ftpcmd.dat
echo quit>> ftpcmd.dat

ftp -n -s:ftpcmd.dat %FTP_hostname%
del %1

del ftpcmd.dat
set FTP_username=
set FTP_password=
set FTP_remote_dir=