backup(使用户能够备份其计算机上的数据)_语法_示例_MSDOS命令

backup命令使MS-DOS用户能够备份其计算机上的数据。

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MS-DOS 2.x - 5.x

BACKUP [Source:PathFile name] [Target:] [/s] [/m] [/a] [/d:date] [/t:time] [/f:size] [/L:LogDrive:PathLog]

Source:PathFile name	您要备份的文件的位置的源，路径和文件名。
Target:	备份文件的目标驱动器。
/s	对指定源位置中的所有文件，目录和子目录进行备份。
/m	备份自上次备份以来已更改的所有文件。
/a	将新的备份文件添加到现有备份中，而不是覆盖它们。
/d:date	自指定日期以来创建或修改的备份文件。
/t:time	在此时间之后创建或修改的备份文件。
/f:size	创建特定大小的备份文件，以便可以将其保存到外部存储设备（例如软盘驱动器）中。
/L:LogDrive:PathLog	创建备份的日志，并指定要保存日志的位置。

BACKUP [Source:PathFile name] [Target:] [/s] [/m] [/a] [/d:date] [/t:time] [/f:size] [/L:LogDrive:PathLog]

Source:PathFile name	The source, path, and file name of the location of the file that you want 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 were created or modified since the date specified.
/t:time	Backup files that were 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:PathLog	Creates a log of the backup and specify the location of where the log is to be saved.

MS-DOS 6.0、6.2、6.21和6.22用户使用msbackup命令。但是，此文件仍可用于这些用户在MS-DOS 6.0和6.22补充磁盘上。

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backup c:work*.* d: /s

上面的示例将在工作目录中创建所有文件和子目录的备份，并将备份保存到d：驱动器。

backup c:work*.* d: /s

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

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backup