What should the field "CDF Path & File" on the Comma Delimited Update screen contain?

When entering specifications for Comma Delimited Update in the toolbox, what should the field "CDF Path & File" contain?

CDF PATH & FILE NAME is the name of a disk file that the update process will create. The generated update process will use the internal STREAM functions to create this file. So, for example, you can use /tmp/output.csv as the file name. This file name path must be on the server and be accessible to APPX. You cannot specify a location on the client machine. Use the subroutine --- SEND FILE TO CLIENT to transfer the CDF to the client machine if necessary.