This is valid, but will do nothing since no operation is specified.
This will process all the profiles in foo.dbp.
This will process all the profiles in foo.dbp and print the full name of each generated file to stdout.
This will process all profiles in foo.dbp and display each plot in a preview window until it is closed with escape or Alt-F4.
This will process all profiles in foo.dbp and display each plot in a preview window for 1000 milliseconds (one second).
This will process all profiles in foo.dbp that begin with "goo".