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CMD.EXE (Windows)

Command Prompt (cmd.exe)
A component of Microsoft Windows
Command prompt icon (windows).png
Command Prompt on Windows 10 RTM.png
Command Prompt in Windows 10
Details
Other names Windows Command Processor
Type Command-line interpreter
Included with
Replaces COMMAND.COM
Related components

Command Prompt, also known as cmd.exe or cmd (after its executable file name), is the command-line interpreter on Windows NT, Windows CE, OS/2 and eComStation operating systems. It is the counterpart of COMMAND.COM in DOS and Windows 9x systems (where it is also called "MS-DOS Prompt"), and analogous to the Unix shells used on Unix-like systems. The initial version of Command Prompt for Windows NT was developed by Therese Stowell.

Command Prompt interacts with the user through a command-line interface. In Windows, this interface is implemented through Win32 console. Command Prompt may take advantage of features available to native programs of its own platform. For example, in OS/2, it can use real pipes in command pipelines, allowing both sides of the pipeline to run concurrently. As a result, it is possible to redirect the standard error stream. (COMMAND.COM uses temporary files, and runs the two sides serially, one after the other.)

In Windows, Command Prompt is compatible with COMMAND.COM but provides the following extensions over it:

Internal commands have also been improved:


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