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Typing recover at the DOS command-line invoked the program file RECOVER.COM or RECOVER.EXE (depending on the DOS version). recover proceeded under the assumption that all directory information included on a disk or disk partition was hopelessly corrupted, but that the FAT and non-directory areas might still contain useful information (though there might be additional bad disk sectors not ...
Some commands are built into the command interpreter; others exist as external commands on disk. Over multiple generations, commands were added for additional functions. In Microsoft Windows, a command prompt window that uses many of the same commands, cmd.exe, can still be used.
Abort (A): Terminate the operation or program, and return to the command prompt. The program would not do any cleanup (such as completing writing of other files). Retry (R): Attempt the operation again. "Retry" was what the user did if they could fix the problem by inserting a disk and closing the disk drive door.
The installed disks and their associated volumes and/or partitions can be viewed using these commands: list disk list volume list partition The sel command will select them. The command clean will perform a "quick" disk wipe, and clean all zeroes out the entire partition/disk.
It includes all commands that are standardized by the Internet Engineering Task Force (IETF) in RFC 959, plus extensions. Note that most command-line FTP clients present their own non-standard set of commands to users. For example, GET is the common user command to download a file instead of the raw command RETR.
A disk image is a snapshot of a storage device's structure and data typically stored in one or more computer files on another storage device. [1] [2]Traditionally, disk images were bit-by-bit copies of every sector on a hard disk often created for digital forensic purposes, but it is now common to only copy allocated data to reduce storage space.
The chkdsk command on Windows XP. CHKDSK can be run from DOS prompt, Windows Explorer, Windows Command Prompt, Windows PowerShell or Recovery Console. [10] On Windows NT operating systems, CHKDSK can also check the disk surface for bad sectors and mark them (in MS-DOS 6.x and Windows 9x, this is a task done by Microsoft ScanDisk).
The tree command is frequently used as part of a technical support scam, where the command is used to occupy the command prompt screen, while the scammer, pretending to be technical support, types additional text that is supposed to look like output of the command. [7]