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The command is also available in FreeDOS [5] and PTS-DOS. [6] The Windows SUBST command is available in supported versions of the command line interpreter cmd.exe. [7] In Windows NT, SUBST uses DefineDosDevice() to create the disk mappings. The JOIN command is the "opposite" of SUBST, because JOIN will take a drive letter and make it appear as ...
Network mapped drives (on LANs or WANs) are available only when the host computer (File Server) is also available (i.e. online): it is a requirement for use of drives on a host. All data on various mapped drives will have certain permissions set (most newer systems) and the user will need the particular security authorizations to access it.
This command displays the UNC pathnames of mapped network or local CD drives. This command is an undocumented DOS command. The help switch "/?" defines it as a "Reserved command name". It is available in MS-DOS version 5.00 and later, including the DOS 7 and 8 in Windows 95/98/ME. The C library function realpath performs this function. The ...
When there is no second physical floppy drive, drive B: can be used as a "virtual" floppy drive mapped onto the physical drive A:, whereby the user would be prompted to switch floppies every time a read or write was required to whichever was the least recently used of A: or B:. This allows for much of the functionality of two floppy drives on a ...
The command is primarily used to manage network resources. [2] It is an external command implemented as net.exe. [3] When used in a batch file, the /Y or /N switches can be used to unconditionally answer Yes or No to questions returned by the command. [2]
Drive: This command-line argument specifies the drive letter of the disk for which to display the volume label and serial number. Note: On Windows, the volume serial number is displayed only for disks formatted with MS-DOS version 4.0 or later. OS/2 allows the user to specify more than one drive. The vol command displays the volume labels ...
The command was originally designed to label floppy disks as a reminder of which one is in the machine. However, it can also be applied to other types of drive such as mapped drives. [5] It is available in MS-DOS versions 3.1 and later and IBM PC DOS releases 3 and later. [6] It is an external command.
The table below identifies each notable operating system and the first version supporting the command. Additionally, older solid-state drives designed before the addition of the TRIM command to the ATA standard will need firmware updates, otherwise the new command will be ignored. However, not every drive can be upgraded to support trimming.