                            SYS

SYS is an external command that copies the system files from the disk in the
default drive to the disk or diskette in the specified drive. There must be
enough room in the right place to hold the system files. On systems prior to
4.0, this required an empty (freshly formatted) disk, unless the /B option on
FORMAT was used. SYS won't work for disks on another computer in a network. 
[Not supported in OS/2]

    SYS d:

d: is the letter of the disk drive that you want to copy the system files to.  
    The disk must have been previously formatted with space available for the 
    system files. Only the brave will use SYS to copy system files to a disk 
    with files on it for a pre-4.0 system.

The system files that are transferred are usually hidden files. COMMAND.COM 
is NOT transferred, even though it is required for normal system operation. 
You must use the COPY command to transfer COMMAND.COM and any other external 
DOS commands you may want on d:.
