The renaming of the files should be done by the batch file before / after the call to the psftp program. It does the transfer, it doesn't have to do everything else, that is why you have a batch file. The script.bat file is instructions for psftp. The place for the other instructions should be in the .bat file that calls psftp. To make things clearer, rename script.bat to script.spftp. This is not a .bat file so should not be labeled as a .bat file!