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APPEND
(External)ASSIGN (External)
Redirects disk drive requests to a different drive.
ASSIGN x=y [...] /sta
ATTRIB (External)
Sets or displays the read-only, archive, system, and hidden
attributes of a file or directory.
ATTRIB [d:][path]filename [/S]
ATTRIB
[+R|-R] [+A|-A] [+S|-S] [+H|-H] [d:][path]filename [/S]
BACKUP (External)
Makes a backup copy of one or more files. (In DOS Version 6,
this program is stored on the DOS supplemental disk.)
BACKUP d:[path][filename]
d:[/S][/M][/A][/F:(size)] [/P][/D:date] [/T:time]
[/L:[path]filename]
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)
CHKDSK (External)
Checks a disk and provides a file and memory status
report.
CHKDSK [d:][path][filename]
[/F][/V]
COMMAND (External)
Starts a new
version of the DOS command processor (the program that loads the DOS Internal
programs).
COMMAND [d:][path] [device]
[/P][/E:(size)] [/MSG][/Y [/C (command)|/K (command)]
COMP (External)
Compares two groups of
files to find information that does not match. (See FC command).
COMP [d:][path][filename]
[d:][path][filename] [/A][/C][/D][/L][/N:(number)]
DBLSPACE (External)
A program
available with DOS 6.0 that allows you to compress information on a
disk.
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:] [/all]
DBLSPACE /size[=size] [/reserve=size]
d:
DBLSPACE /uncompress d:
DBLSPACE /unmount [d:]
DEBUG (External)
An
MS-DOS utility used to test and edit programs.
DEBUG [pathname] [parameters]
DEFRAG (External)
Optimizes disk performance by reorganizing the files on the disk.
DEFRAG [d:] [/F][/S[:]order] [/B][/skiphigh
[/LCD|/BW|/GO] [/H]
DEFRAG [d:] [/V][/B][/skiphigh] [/LCD]|/BW|/GO]
[/H]
DELOLDOS (External)
Deletes all files
from previous versions of DOS after a 5.0 or 6.0 installation.
DELOLDOS [/B]
DELTREE (External)
Deletes (erases) a directory including all files and
subdirectories that are in it.
DELTREE [/Y] [d:]path
[d:]path[...]
DISKCOMP (External)
Compares the contents of two diskettes.
DISKCOMP [d:]
[d:][/1][/8]
DISKCOPY (External)
Makes an exact copy of a diskette.
DISKCOPY [d:]
[d:][/1][/V][/M]
DOSKEY (External)
Loads the Doskey program into memory which can be used
to recall DOS commands so that you can edit them.
DOSKEY [reinstall]
[/bufsize=size][/macros][/history][/insert|/overstrike]
[macroname=[text]]
DOSSHELL (External)
Initiates the graphic shell
program using the specified screen resolution.
DOSSHELL [/B]
[/G:[resolution][n]]|[/T:[resolution][n]]
EDIT (External)
Starts the MS-DOS editor, a text editor used to
create and edit ASCII text files.
EDIT [d:][path]filename
[/B][/G][/H][/NOHI]
EMM386 (External)
Enables or disables EMM386 expanded-memory support on a
computer with an 80386 or higher processor.
EMM386 [on|off|auto]
[w=on|off]
EXE2BIN (External)
Converts .EXE (executable) files to binary format.
EXE2BIN [d:][path]filename
[d:][path]filename
EXPAND (External)
Expands a compressed file.
EXPAND [d:][path]filename
[[d:][path]filename[ . . .]]
FASTHELP (External)
Displays a list of DOS commands with a brief explanation of
each.
FASTHELP [command][command]
/?
FASTOPEN (External)
Keeps track of the locations of files for fast
access.
FASTOPEN d:[=n][/X]
FDISK (External)
Prepares a fixed disk to accept DOS files for
storage.
FDISK [/status]
FIND (External)
Finds and reports the location of a specific string of text
characters in one or more files.
FIND [/V][/C][/I][/N] ÒstringÓ
[d:][path]filename[...]
FORMAT (External)
Formats a disk to accept DOS files.
FORMAT d:[/1][/4][/8][/F:(size)]
[/N:(sectors)] [/T:(tracks)][/B|/S][/C][/V:(label)] [/Q][/U][/V]
GRAFTABL (External)
Loads a table of character data into memory (for use with a
color/graphics adapter).
GRAFTABL [(code page)]
GRAFTABL
[status]
GRAPHICS (External)
Provides a way to print contents of a graphics screen
display.
GRAPHICS [printer type][profile]
[/B][/R][/LCD][/PB:(id)] [/C][/F][/P(port)]
HELP (External)
Displays information about a DOS command.
HELP [command]
[/B][/G][/H][/NOHI]
INTERLINK (External)
Connects two computers via parallel or serial ports so that
the computers can share disks and printer ports.
INTERLINK
[client[:]=[server][:]]
INTERSVR (External)
Starts the Interlink server.
INTERSVR [d:][...][/X=d:][...]
[/LPT:[n|address]] [/COM:[n|address]][/baud:rate] [/B][/V]
INTERSVR
/RCOPY
JOIN (External)
Allows access to the directory structure and files of a drive
through a directory on a different drive.
JOIN d: [d:path]
JOIN d:
[/D]
KEYB (External)
Loads a program that replaces the support program for U. S.
keyboards.
KEYB [xx][,][yyy][,][d:][path]filename
[/E][/ID:(number)]
LABEL (External)
Creates or changes or deletes a volume label for a disk.
LABEL [d:][volume label]
MEM (External)
Displays amount of installed and available memory,
including extended, expanded, and upper memory.
MEM
[/program|/debug|/classify|/free|/module(name)] [/page]
MEMMAKER (External)
Starts the MemMaker program, a program that lets
you optimize your computer's memory.
MEMMAKER [/B][/batch][/session][/swap:d]
[/T][/undo][/W:size1,size2]
MIRROR (External)
Saves disk storage
information that can be used to recover accidentally erased files.
MIRROR [d:]path [d:] path [...]
MIRROR
[d1:][d2:][...] [/T(drive)(files)] [/partn][/U][/1]
MODE (External)
Sets mode of operation for devices or communications.
MODE n
MODE
LPT#[:][n][,][m][,][P][retry]
MODE [n],m[,T]
MODE
(displaytype,linetotal)
MODE
COMn[:]baud[,][parity][,][databits][,][stopbits][,][retry]
MODE LPT#[:]=COMn
[retry]
MODECON[RATE=(number)][DELAY=(number)]
MODE (device) CODEPAGE
PREPARE=(codepage) [d:][path]filename
MODE (device) CODEPAGE
PREPARE=(codepage list) [d:][path]filename
MODE (device) CODEPAGE
SELECT=(codepage)
MODE (device) CODEPAGE [/STATUS]
MODE (device) CODEPAGE
REFRESH
MORE (External)
Sends output to console, one screen at a time.
MORE < (filename or
command)
(name)|MORE
MSAV (External)
Scans your
computer for known viruses.
MSAV [d:]
[/S|/C][/R][/A][/L][/N][/P][/F][/video][/mouse]
MSAV /video
MSBACKUP (External)
Used to backup or restore one or more files from one disk to another.
MSBACKUP [setupfile] [/BW|/LCD|/MDA]
MSCDEX (External)
Used to gain access to CD-ROM
drives (new with DOS Version 6).
MSCDEX /D:driver [/D:driver2. . .]
[/E][/K][/S][/V][/L:letter] [/M:number]
MSD (External)
Provides detailed technical
information about your computer.
MSD [/B][/I]
MSD [/I] [/F[d:][path]filename
[/P[d:][path]filename [/S[d:][path]filename
NLSFUNC (External)
Used to
load a file with country-specific information.
NLSFUNC [d:][path]filename
POWER (External)
Used to turn power management on and off, report the status of power
management, and set levels of power conservation.
POWER [adv:max|reg|min]|std|off]
PRINT (External)
Queues and prints data files.
PRINT [/B:(buffersize)] [/D:(device)]
[/M:(maxtick)] [/Q:(value] [/S:(timeslice)][/U:(busytick)] [/C][/P][/T]
[d:][path][filename] [...]
RECOVER (External)
Resolves sector problems on a file or a disk. Beginning with DOS
Version 6, RECOVER is no longer available .
RECOVER [d:][path]filename
RECOVER
d:
REPLACE (External)
Replaces stored files with files of the same
name from a different storage location.
REPLACE [d:][path]filename [d:][path]
[/A][/P][/R][/S][/U][/W]
RESTORE (External)
Restores to standard disk storage format files previously stored using
the BACKUP command.
RESTORE d: [d:][path]filename
[/P][/S][/B:mm-dd-yy] [/A:mm-dd-yy][/E:hh:mm:ss] [/L:hh:mm:ss] [/M][/N][/D]
SCANDISK (External)
Starts
the Microsoft ScanDisk program which is a disk analysis and repair tool used to
check a drive for errors and correct any problems that it finds.
SCANDISK [d: [d: . .
.]|/all][/checkonly|/autofix[/nosave]|/custom][/surface][/mono][/nosummay]
SCANDISK
volume-name[/checkonly|/autofix[/nosave]|/custom][/mono][/nosummary]
SCANDISK
/fragment [d:][path]filename
SCANDISK /undo [undo-d:][/mono]
SELECT (External)
Formats a disk and installs country-specific
information and keyboard codes (starting with DOS Version 6, this command is no
longer available).
SELECT [d:] [d:][path] [country
code][keyboard code]
SETVER (External)
Displays the version table
and sets the version of DOS that is reported to programs.
SETVER [d:]:path][filename
(number)][/delete][/quiet]
SHARE (External)
Installs support for file sharing and file
locking.
SHARE [/F:space] [/L:locks]
SORT (External)
Sorts input and sends it to the screen or to a
file.
SORT [/R][/+n] < (filename)
SORT
[/R][/+n] > (filename2)
SUBST (External)
Substitutes a virtual drive letter for a path
designation.
SUBST d: d:path
SUBST d:
/D
SYS (External)
Transfers the operating
system files to another disk.
SYS [source] d:
TREE (External)
Displays
directory paths and (optionally) files in each subdirectory.
TREE [d:][path] [/A][/F]
UNDELETE (External)
Restores
files deleted with the DELETE command.
UNDELETE [d:][path][filename]
[/DT|/DS|/DOS]
UNDELETE
[/list|/all|/purge[d:]|/status|/load|/U|/S[d:]|/Td:[-entries]]
UNFORMAT (External)
Used to undo the effects of formatting a
disk.
UNFORMAT d:
[/J][/L][/test][/partn][/P][/U]
VSAFE (External)
VSAFE is a memory-resident program that continuously
monitors your computer for viruses and displays a warning when it finds
one.
VSAFE [/option[+|-]...] [/NE][/NX][Ax|/Cx]
[/N][/D][/U]
XCOPY (External)
Copies
directories, subdirectories, and files.
XCOPY [d:][path]filename
[d:][path][filename] [/A][/D:(date)] [/E][/M][/P][/S][/V][/W][Y\-Y]