If the source file does not exist, a new source file is created.
Otherwise the existing file is merged with the new PPD file(s) on the command-line.
If no source file is specified, the filename \fIppdi.drv\fR is used.
If the source file does not exist, a new source file is created.
Otherwise the existing file is merged with the new PPD file(s) on the command-line.
If no source file is specified, the filename \fIppdi.drv\fR is used.