How to use PI to ftp a file from source to destination with the same name

Hi, all.

I need to create an interface to transfer a text file. The file is located in a source directory in a known pattern. PI will parse the file and do very minor manipulation. Then we need to keep the exact same file name when we SFTP to the destination server. How can I do that in PI?

The requirement sounds simple but I cannot think of an easy way to achieve it in PI. Is there a way to pass the file name from the sender file adapter to the receiver sftp adapter? Actually using unix shell could have been a very easy task.

Thanks,

Jonathan.