concatenated file does not exist.

The mcf concatenated file is not specified after the header segment storage mcf data file.

S: Stops the reading of data from the header segment storage mcf data file and waits for input of a file name.

O: When specifying an mcf data file containing a header segment, specify the file name storing segments following the header segment, immediately after the header segment storage file name.

To stop the test, enter the end command.