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BREAK (Internal)
Used from the DOS prompt or in a batch file or in the
CONFIG.SYS file to set (or display) whether or not DOS should check for a Ctrl +
Break key combination.
BREAK =on|off
BUFFERS (Internal)
Used in the CONFIG.SYS file to set the number of disk
buffers (number) that will be available for use during data input. Also used to
set a value for the number of sectors to be read in advance (read-ahead) during
data input operations.
BUFFERS=(number),(read-ahead
number)
CALL (Internal)
Calls
another batch file and then returns to current batch file to continue.
CALL [d:][path]batchfilename
[options]
CHCP (Internal)
Displays the current
code page or changes the code page that DOS will use.
CHCP (codepage)
CHDIR (Internal)
Displays working (current) directory and/or changes to a
different directory.
CHDIR (CD) [d:]path
CHDIR
(CD)[..]
CHOICE (Internal)
Used to provide a prompt so that a user can make a choice
while a batch program is running.
CHOICE [/C[:]keys] [/N][/S][/T[:]c,nn]
[text]
CLS (Clear
Screen) (Internal)
Clears (erases) the
screen.
CLS
COPY (Internal)
Copies and appends files.
COPY [/Y|-Y] [/A][/B] [d:][path]filename
[/A][/B] [d:][path][filename] [/V]
or
COPY [/Y|-Y][/A][/B]
[d:][path]filename+[d:][path]filename[...][d:][path][filename] [/V]
COUNTRY (Internal)
Used in the CONFIG.SYS file to tell DOS to use
country-specific text conventions during processing.
COUNTRY=country code,[code
page][,][d:][filename]
CTTY (Internal)
Changes the standard I/O
(Input/Output) device to an auxiliary device.
CTTY (device)
DATE (Internal)
Displays and/or sets the
system date.
DATE mm-dd-yy
DEL
(ERASE) (Internal)
Deletes (erases) files from disk.
DEL (ERASE) [d:][path]filename
[/P]
DEVICE (Internal)
Used in the
CONFIG.SYS file to tell DOS which device driver to load.
DEVICE=(driver name)
DEVICEHIGH (Internal)
Like
DEVICE, DEVICEHIGH is used in the CONFIG.SYS file to tell DOS which device
driver software to use for devices; however, this option is used to install the
device driver into the upper memory area.
DEVICEHIGH=(driver name)
DIR (Internal)
Displays directory of files
and directories stored on disk.
DIR [d:][path][filename] [/A:(attributes)]
[/O:(order)] [/B][/C][/CH][/L][/S][/P][/W]
DOS (Internal)
Used in the
CONFIG.SYS file to specify the memory location for DOS. It is used to load DOS
into the upper memory area and to specify whether or not the upper memory blocks
will be used.
DOS=[high|low],[umb|noumb]
DRIVPARM (Internal)
Used in the
CONFIG.SYS file to set parameters for a disk drive.
DRIVPARM= /D:(number) [/C] [/F:(form
factor)] [/H:(number)] [/I][ /N][/S:(number)] [/T:(tracks)]
ECHO (Internal)
Displays
messages or turns on or off the display of commands in a batch file.
ECHO on|off
ECHO (message)
EXIT (Internal)
Exits a secondary command processor.
EXIT
FCBS (Internal)
Used
in the CONFIG.SYS file to specify the number of file-control blocks for file
sharing.
FCBS=(number)
FILES (Internal)
Used in the CONFIG.Sys file to specify the maximum number
of files that can be open at the same time.
FILES=(number)
FOR (Internal)
Performs repeated execution of commands (for both batch
processing and interactive processing).
FOR %%(variable) IN (set) DO
(command)
or (for interactive processing)
FOR %(variable) IN (set) DO
(command)
GOTO (Internal)
Causes unconditional branch to the specified
label.
GOTO (label)
IF (Internal)
Allows for conditional operations in batch
processing.
IF [NOT] EXIST filename (command)
[parameters]
IF [NOT] (string1)==(string2) (command) [parameters]
IF [NOT]
ERRORLEVEL (number) (command) [parameters]
INCLUDE (Internal)
Used in the CONFIG.SYS file to allow you to use the commands
from one CONFIG.SYS block within another.
INCLUDE= blockname
INSTALL (Internal)
Used in the CONFIG.SYS file to load memory-resident
programs into conventional memory.
INSTALL=[d: ][\path]filename
[parameters]
LASTDRIVE (Internal)
Used in the CONFIG.SYS file to set the
maximum number of drives that can be accessed.
LASTDRIVE=(drive letter)
LOADFIX (Internal)
Ensures that a program is loaded above the first 64K of
conventional memory, and runs the program.
LOADFIX [d:][path]filename [parameters]
LOADHIGH (Internal)
Loads memory resident application into reserved area of
memory (between 640K-1M).
LOADHIGH (LH) [d:][path]filename
[parameters]
MENUCOLOR (Internal)
Used in the CONFIG.SYS file to set the colors that will be
used by DOS to display text on the screen.
MENUCOLOR=textcolor,[background]
MENUDEFAULT (Internal)
Used in the CONFIG.SYS file to set the startup
configuration that will be used by DOS if no key is pressed within the specified
timeout period.
MENUDEFAULT=blockname, [timeout]
MENUITEM (Internal)
Used in the CONFIG.SYS file to create a start-up menu from which you can
select a group of CONFIG.SYS commands to be processed upon reboot.
MENUITEM=blockname, [menutext]
MKDIR (MD) (Internal)
Creates a
new subdirectory.
MKDIR (MD) [d:]path
MOVE (Internal)
Moves one or
more files to the location you specify. Can also be used to rename directories.
MOVE [/Y|/-Y]
[d:][path]filename[,[d:][path]filename[...]] destination
NUMLOCK (Internal)
Used in the
CONFIG.SYS file to specify the state of the NumLock key.
NUMLOCK=on|off
PATH (Internal)
Sets or displays directories that will be searched for programs not in
the current directory.
PATH;
PATH [d:]path[;][d:]path[...]
PAUSE (Internal)
Suspends execution
of a batch file until a key is pressed.
PAUSE [comment]
PROMPT (Internal)
Changes the DOS command prompt.
PROMPT [prompt text] [options]
REM (Internal)
Used in batch files and
in the CONFIG.SYS file to insert remarks (that will not be acted
on).
REM [comment]
RENAME (REN) (Internal)
Changes the filename under which a file is
stored.
RENAME (REN) [d:][path]filename
[d:][path]filename
RMDIR
(RD) (Internal)
Removes a
subdirectory.
RMDIR (RD) [d:]path
SET (Internal)
SET (string1)=(string2)
Inserts strings
into the command environment. The set values can be used later by
programs.
SHELL (Internal)
Used in the CONFIG.SYS file to specify the command
interpreter that DOS should use.
SHELL=[d:][path]filename [parameters]
SHIFT (Internal)
Increases number of replaceable parameters to more than the
standard ten for use in batch files.
SHIFT
STACKS (Internal)
Used in the CONFIG.SYS file to set the number of stack
frames and the size of each stack frame.
STACKS=(number),(size)
SUBMENU (Internal)
Used in the CONFIG.SYS file to create a multilevel menu from
which you can select start-up options.
SUBMENU=blockname, [menutext]
SWITCHES (Internal)
Used
in the CONFIG.SYS file to configure DOS in a special way; for example, to tell
DOS to emulate different hardware configurations.
SWITCHES= [/K][/F][/N][/W]
TIME (Internal)
Displays
current time setting of system clock and provides a way for you to reset the
time.
TIME hh:mm[:ss][.cc][A|P]
TYPE (Internal)
Displays the
contents of a file.
TYPE [d:][path]filename
VER (Internal)
Displays the DOS version
number.
VER
VERIFY (Internal)
Turns on the verify
mode; the program checks all copying operations to assure that files are copied
correctly.
VERIFY on|off
VOL (Internal)
Displays a disk's volume
label.
VOL [d:]