Microsoft DOS backup command

Quick links

About backup
Availability
Backup syntax
Examples
Extended Information

About backup

MS-DOS application that enables users to backup their data on their computer.

MS-DOS 6.0, 6.2, 6.21, and 6.22 users use the msbackup command. However, this file is still available to these users on the MS-DOS 6.0 and 6.22 supplemental disk.

Availability

The backup.com / backup.exe commands are external commands that are available in the below Microsoft operating systems.

MS-DOS 2.x to MS-DOS 5.00a

Index

Category:
MS-DOS

Companies:
Microsoft

Related Pages:
Operating systems

Resolved

Were you able to locate the answer to your questions?

Backup syntax

MS-DOS 2.x - 5.x syntax

BACKUP [Source:\Path\Filename] [Target:] [/s] [/m] [/a] [/d:date] [/t:time] [/f:size] [/L:LogDrive:\Path\Log]

Source:\Path\Filename	The source, path, and filename of the location of the file that you wish to backup.
Target:	The target drive for the backup file.
/s	Makes a backup of all files, directories, and subdirectories in the specified source location.
/m	Backup all files that have changed since the last backup.
/a	Adds a new backup file to existing backups instead of overwriting them.
/d:date	Backup files that have been created or modified since the date specified.
/t:time	Backup files that have been created or modified after this time.
/f:size	Create backup files in a specific size so they can be saved to an external storage such as a floppy disk drive.
/L:LogDrive:\Path\Log	Create a log of the backup and specify the location of where the log is to be saved.

Examples

backup c:\work\*.* d: /s

The above example would create a backup of all the files and subdirectories in the work directory and save the backup to the d: drive.

Home - Computer help - Contact - Dictionary - Links
Link to Computer Hope - Bookmark Computer Hope