Types of Commands

DOS Commands are two types

1) Internal Commands.

2) External Commands.

INTERNAL COMMANDS:

The internal commands are those which are automatically loaded in the memory of your personal computer when DOS is loaded. Then those commands can be used without the need of any file or diskette. The internal commands are simple and are used for common jobs, such as copying, erasing and renaming file or changing the directory and changing the current date, time in your personal computer.

All internal commands are called memory resident commands.

All internal commands are part of Command.com

These are do not require any special files for being executing and are brought into the memory as soon as the computer is switched on.

List of Internal Commands :

DIR	CD
COPY	MD
DEL	CLS
TYPE	DATE
TIME	PATH
REN	RD1
BREAK	CALL
ECHO	EXIT
GOTO	IF
PAUSE	PROMPT
REM	SET
SHIFT	VER
VERIFY	VOL

EXTERNAL COMMANDS:

The external commands are used for relative complex jobs such as copying the entire diskette, comparing or joining files, sorting text and formatting a diskette. For using external commands, you need to use corresponding file available in the DOS diskettes or the hard disk.

All External commands are disk  resident commands. These commands will be loaded at the use of request.

Any command which contains COM, EXE, BAT may called as external commands.

These are require certain special DOS files for being executed.

List of External Commands :

FORMAT	ATTRIB
CHKDSK	TREE
XCOPY	DISKCOPY
PRINT	SWISS
BACKUP	GRAPHICS
CHKDSK	LABLE
DISK.COM	MODE
DELTREE	MORE
UNFORMAT	FDISK
SORT	UNDELATE
DOS-KEY	MOVE
EDIT	SCANDISK

Various DOS Command List :

List of Directory Commands :

DIR	MD
RD	TREE
PATH	SUBST

List of File Management Commands :

COPY	XCOPY
DEL	RENAME
ATTIB	BACKUP
RESTORE	FIND
SYS	COPYCON
EDIT

List of File Disk Management Commands :

FORMAT	CHKDSK
DISKCOPY	LABLE
VOL	DISKCOMP
COMP	RECOVER

List of File General Commands :

TYPE	DATE
TIME	PROMPT

List of Batch File Commands :

CALL	CHOICE
@	IF
FOR	GOTO
PAUSE	REM
SET	SHIFT

List of DOS Utility File Commands :

MEMMAKER	MSAV
DBLSPACE	MOVE
DEFRAG	DELTREE
MSBACKUP	SCANDISK
SETVER	UNDELETE
UNFORMAT	XCOPY