Kreisen 3 8 6 X / X E - Manual (Page 113)

will copy all of the files ending in SALES.RPT to the B drive.
The command:
A >COPY MAYSALES.*B:
will copy all files about MAYSALES to the B drive.
A final example:
A>COPY *.* C:
will copy all of the files on a diskette in the A drive to the
hard disk drive. This command is useful when backing up
diskettes containing data files.
Using Floppy Disks 5-13