BACKUP (MS-DOS)
From Just Solve the File Format Problem
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{{FormatInfo | {{FormatInfo | ||
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|extensions={{ext|@@@}}, others | |extensions={{ext|@@@}}, others | ||
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The developers of FreeDOS have attempted to reverse-engineer these formats to produce backup and restore commands in that system that are compatible with Microsoft's. | The developers of FreeDOS have attempted to reverse-engineer these formats to produce backup and restore commands in that system that are compatible with Microsoft's. | ||
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| + | == Sample files == | ||
| + | * {{DexvertSamples|archive/dosBackupFile}} | ||
== Links == | == Links == | ||
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* [http://www.computerhope.com/backup.htm Backup command help] | * [http://www.computerhope.com/backup.htm Backup command help] | ||
| + | [[Category:Archiving]] | ||
[[Category:Microsoft]] | [[Category:Microsoft]] | ||
| + | [[Category:MS-DOS]] | ||
[[Category:File formats with too many extensions]] | [[Category:File formats with too many extensions]] | ||
Latest revision as of 00:31, 15 June 2024
The BACKUP command in MS-DOS backed up the contents of a hard disk to files of a proprietary, undocumented format which could be returned to their original file structure using the RESTORE command. A number of different formats have been used in different versions of DOS. Files generally had extensions consisting of three digits (incremented consecutively across the files of the backup set), with a control file called BACKUPID.@@@. The aim was to store the entire file and directory structure of a disk onto a set of files that each fit on a floppy disk.
The developers of FreeDOS have attempted to reverse-engineer these formats to produce backup and restore commands in that system that are compatible with Microsoft's.
