High Quality Content by WIKIPEDIA articles! In some operating systems (e.g., DOS, OS/2 and Microsoft Windows) vol is a command within the command line interpreters (shells) such as COMMAND.COM and cmd.exe. It is used to display the volume label and serial number on a logical drive, such as a hard disk partition or a floppy disk, if they exist.Drive: This command-line argument specifies the drive letter of the disk for which to display the volume label and serial number.On Windows, the serial number is displayed only for disks formatted with MS-DOS version 4.0 or later.

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