General

Type: Internal (6.0 and later) Syntax: SUBMENU=blockname, [menutext] Purpose: Used in the CONFIG.SYS file to create a multilevel menu from which you can select start-up options . Discussion The SUBMENU command can only be used within a menu block in your CONFIG.SYS file. Up to nine SUBMENU commands are allowed …

Type: External (2.0 and later) Syntax: ASSIGN ASSIGN x=y […] /sta Purpose: Redirects disk drive requests to a different drive. (In DOS Version 6, this program is stored on the DOS supplemental disk.) Discussion Use the ASSIGN command to change drive assignments from the drive indicated by the first letter …

Type: Internal (2.0 and later) Syntax: CTTY (device) Purpose: Changes the standard I/O (Input/Output) device to an auxiliary device. Discussion The CTTY command is used only for I/O (input/output) devices such as a monitor. It cannot be used for peripheral devices such as a printer. However, DOS does not check …

Type: External (5.0 and later) Syntax: SETVER [d:]:path][filename (number)][/delete][/quiet] Purpose: Makes Version 5 of DOS appear to be an earlier version when an application requires it. Discussion The SETVER command displays the version table and reports a DOS version number to programs or device drivers. Use this command if you …

Type: External (6.0 and later) Syntax: POWER POWER [adv:max|reg|min]|std|off] Purpose: Used to turn power management on and off, report the status of power management, and set levels of power conservation. Discussion Before you can use the POWER command you must use the DEVICE command in your CONFIG.SYS file to install …

Type: External (3.3 and later) Syntax: NLSFUNC [d:][path]filename Purpose: Used to load a file with country-specific information. Discussion NLSFUNC, new to DOS with DOS Version 3.3, supports the use of extended country-related information. The filename you enter should contain the country-specific information (it is defined by a COUNTRY command placed …

Type: External (2.0 and later) Syntax: COMMAND COMMAND [d:][path] [device] [/P][/E:(size)] [/MSG] [/Y [/C (command)| /K (command)] Purpose: Reloads the DOS command processor (the program that loads the DOS internal programs) or starts a new command processor. Discussion Using this command with no options loads a new command processor with …

Type: External (6.0 and later) Syntax: DBLSPACE DBLSPACE / automount=drives DBLSPACE /chkdsk [/F] [d:] DBLSPACE /compress d: [/newdrive=host:] [/reserve=size] [/F] DBLSPACE /create d: [/newdrive=host:] [/reserve=size] [/size=size] DBLSPACE /defragment [d:] ]/F] DBLSPACE /delete d: DBLSPACE /doubleguard=0|1 DBLSPACE /format d: DBLSPACE [/info] [d:] DBLSPACE /list DBLSPACE /mount[=nnn] host: [/newdrive=d:] DBLSPACE /ratio[=ratio] [d:] …

Type: Internal (2.0 and later) Syntax: CLS Purpose: Clears (erases) the screen. Discussion Erases all characters and graphics from the screen; however, it does not change the currently-set screen attributes. Example Enter cls to clear the screen of everything but the command prompt and the cursor.

Type: External (3.0 and later) Syntax: GRAFTABL [(code page)] GRAFTABL [/status] Purpose: Loads a table of character data into memory (used with color/graphics adapters). (In DOS Version 6, this program is stored on the DOS supplemental disk.) Discussion Used to load the table of displayable characters to those appropriate for …