This file contains the BACKUP command program. As mentioned above, this file is provided on your MS-DOS install diskette. You can run the program from the floppy disk drive or from the hard disk, if you have copied the file into a subdirectory on the hard disk.

To back up the entire hard disk, start by changing the system default drive to the hard disk. Enter:

A>C:

Next, make sure you are in the root directory of the hard disk. Enter:

C>CD C:\

Now, make sure your diskettes are formatted and ready. If you are running BACKUP from the MS-DOS install diskette, enter the command:

C>A:BACKUP C:\A: /S

If you have set up your hard disk directories as described in the “Organizing Your Hard Disk” section above, enter the command:

C> BACKUP C:\DOS4 A: /S

In the first example, the A:BACKUP command tells MS-DOS to search the A drive for the BACKUP.COM file. In the second, the C:\DOS4 statement will automatically direct MS- DOS to look in the C:\DOS4 subdirectory for the file.

6-18 Using Your Hard Disk