Internal DOS commands are those provided internally by cmd.exe:
BREAK, CD/CHDIR, CHCP, CLS, COPY, CTTY, DATE, DEL/ERASE, DIR, EXIT, LOADHIGH, LOCK, MD/MKDIR, PATH, PROMPT, RD/RMDIR, SET, TIME, TRUENAME, TYPE, UNLOCK, VER, VOL, VERIFY.
External commands are those provided by separate executables.
Internal commands are functions that are built into the command interpreter, External commands are those not included in the interpreter, and are instead invoked by calling an external binary. Whether or not a particular command is internal or external varies by system. For example, echo is an internal command in MS-DOS (it is built into COMMAND.COM), while in most Linux systems, it is an external one, provided by GNU coreutils.DOS Internal command is associated with his Shell file Command.Com.. DOS external command is saved on the disk..
the deleted file if ms dos can be recovered if you use the command mention below immediately,the command is : need External Dos commands and internal dos commands with their meaning
1. Internal Command: Present in Command.com..2. External Command: Present in the disk..
The DOS message "bad command or file name" means that the command you entered was not recognized as an internal command or as an external command in the working directory or path.
yes it is an external command.
Internal commands are the commands that are executed <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> directly by the shell. These commands will not have a separate process running for each. External commands are the commands that are executed by the kernal. These commands will have a process id running for it. Internal commands are stored in the cmd.exe command interpreter, ex. Dir External commands correspond to a .com or .cmd file, ex.
Internal and external refer to the command's location in relation to the kernel. An internal command is one built into MS-DOS's kernel. Such commands include CD, DEL, and MOVE. These commands cannot be removed from the system, as they are built-in to MS-DOS. In contrast, external commands are programs bundled with MS-DOS, but are not specifically built into the kernel. Such commands can include EDIT, COPY, and QBASIC. These commands previously resided in C:\DOS (where C is the drive letter), but in most versions of Windows, they will be found in C:|Windows\System32\Command (a user should check their system for specifics).
The 'ls' command is an external command (found in /bin)
An internal command is an MS-DOS command that is stored in the system memory and loaded from the command.com or cmd.exe.
INTERNAL COMMANDSThese are those commands which are contained in command.com files of MS-DOS.These are those functions that are built into the command interpreter.There is no need of any external file in computer to read internal MS-DOS command.These commands can be used as long as DOS is running on the system.Internal commands do not vary from system to system.These are ver, time, del, md, cd, copy con, cls, date, vol, ren, copy etc.EXTERNAL COMMANDSThese are those commands which are not in-built in MS-DOS.External commands are those which are not included in the interpreter.There is a need of an internal file in the computer to read external MS-DOS command.External command may vary from system to system. This means any two computers with same version of MS-DOS may have same internal commands, but may have different external commands.These are tree, xcopy, diskcopy, more, print etc.
"time" command.
Internal ms-dos commands with syntax