Using the BACKUP Command

Use the BACKUP command to back up the data on your hard disk. It provides a convenient and efficient way to copy the files on your hard disk. BACKUP allows you to do the following:

Split large files across two or more diskettes

Copy only those files chat have been modified since the most recent backup

Copy only those files that have been created (or modified) after a specified date

Copy files in the current directory together with files in all subdirectories of the current directory

Format diskettes while copying files.

Unlike DISKCOPY and COPY, which make readable copies of files, BACKUP creates files that you cannot access directly. To return files copied with the BACKUP command to their original locations on the hard disk, you must use the RESTORE command.

Make sure you have enough diskettes to back up the data on your hard disk drive. It takes about 57 360KB diskettes to copy a 20MB hard disk that is completely full.

See your MS-DOS Reference Manual for complete instructions on using BACKUP.

Using MS-DOSWith Your Computer 3-33