archive attribute

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archive attribute

A file classification that indicates whether the file has been updated since the last backup. A bit is set in the file directory to indicate the archive status. When a file is created or saved, the bit is turned on. When it is backed up, the bit is turned off. See file attribute.
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You have to learn about back-up terms such as "archive bit" and "differential" and decipher complex logs to make certain the backup worked.
The configuration options made it easy to turn compression on and off and to turn archive bit reset on or off (important if you want to do testing on files without marking them as 'saved').
For example, files can be selected for back up by name, date range, directory, and archive bit or can be marked using a shell directory listing.
Every time you create or change a file, DOS sets (turns on) a file attribute called an archive bit. Most back-up programs have the ability to turn off this bit as they back up a file.
With XCOPY you can copy only files with the archive bit turned on, or that were modified after a particular date.
Like XCOPY, you can use command-line switches to back up selectively by archive bit or date.
The archive bit is set by XCOPY, BACKUP, and RESTORE.
Files to be backed up can be selected by name, date, range, directory, or archive bit, or the desired files can be marked using a directory listing.