Remarks

To use multiple commands for , separate them by the command separator && and enclose them in quotation marks. For example:

If you specify /c or /k, cmd processes, the remainder of string, and the quotation marks are preserved only if all of the following conditions are met:

You don’t also use /s.

You use exactly one set of quotation marks.

You don’t use any special characters within the quotation marks (for example: & ( ) @ ^ | ).

You use one or more white-space characters within the quotation marks.

The string within quotation marks is the name of an executable file.

If the previous conditions aren’t met, string is processed by examining the first character to verify whether it is an opening quotation mark. If the first character is an opening quotation mark, it is stripped along with the closing quotation mark. Any text following the closing quotation marks is preserved.

If you don’t specify /d in string, Cmd.exe looks for the following registry subkeys:

HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\AutoRun\REG_SZ

HKEY_CURRENT_USER\Software\Microsoft\Command Processor\AutoRun\REG_EXPAND_SZ

If one or both registry subkeys are present, they’re executed before all other variables.

Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer.

You can disable command extensions for a particular process by using /e:off. You can enable or disable extensions for all cmd command-line options on a computer or user session by setting the following REG_DWORD values:

HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\EnableExtensions\REG_DWORD

HKEY_CURRENT_USER\Software\Microsoft\Command Processor\EnableExtensions\REG_DWORD

Set the REG_DWORD value to either 0Г—1 (enabled) or 0Г—0 (disabled) in the registry by using Regedit.exe. User-specified settings take precedence over computer settings, and command-line options take precedence over registry settings.

Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer.

When you enable command extensions, the following commands are affected:

assoc

call

chdir (cd)

color

del (erase)

endlocal

for

ftype

goto

if

mkdir (md)

popd

prompt

pushd

set

setlocal

shift

start (also includes changes to external command processes)

If you enable delayed environment variable expansion, you can use the exclamation point character to substitute the value of an environment variable at run time.

File and directory name completion is not enabled by default. You can enable or disable file name completion for a particular process of the cmd command with /f:<on | off>. You can enable or disable file and directory name completion for all processes of the cmd command on a computer or for a user logon session by setting the following REG_DWORD values:

HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\CompletionChar\REG_DWORD

HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\PathCompletionChar\REG_DWORD

HKEY_CURRENT_USER\Software\Microsoft\Command Processor\CompletionChar\REG_DWORD

HKEY_CURRENT_USER\Software\Microsoft\Command Processor\PathCompletionChar\REG_DWORD

To set the REG_DWORD value, run Regedit.exe and use the hexadecimal value of a control character for a particular function (for example, 0Г—9 is TAB and 0Г—08 is BACKSPACE). User-specified settings take precedence over computer settings, and command-line options take precedence over registry settings.

Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer.

If you enable file and directory name completion by using /f:on, use CTRL+D for directory name completion and CTRL+F for file name completion. To disable a particular completion character in the registry, use the value for white space [0Г—20] because it is not a valid control character.

Pressing CTRL+D or CTRL+F, processes the file and directory name completion. These key combination functions append a wildcard character to string (if one is not present), builds a list of paths that match, and then displays the first matching path.

If none of the paths match, the file and directory name completion function beeps and does not change the display. To move through the list of matching paths, press CTRL+D or CTRL+F repeatedly. To move through the list backwards, press the SHIFT key and CTRL+D or CTRL+F simultaneously. To discard the saved list of matching paths and generate a new list, edit string and press CTRL+D or CTRL+F. If you switch between CTRL+D and CTRL+F, the saved list of matching paths is discarded and a new list is generated. The only difference between the key combinations CTRL+D and CTRL+F is that CTRL+D only matches directory names and CTRL+F matches both file and directory names. If you use file and directory name completion on any of the built-in directory commands (that is, CD, MD, or RD), directory completion is assumed.

File and directory name completion correctly processes file names that contain white space or special characters if you place quotation marks around the matching path.

You must use quotation marks around the following special characters: & [ ] | < >^ = ; ! ‘ + , `

If the information that you supply contains spaces, you must use quotation marks around the text (for example, «Computer Name»).

If you process file and directory name completion from within string, any part of the path to the right of the cursor is discarded (at the point in string where the completion was processed).

Command-Line Reference

Applies To: Windows Server 2003, Windows Vista, Windows XP, Windows Server 2008, Windows 7, Windows Server 2003 R2, Windows Server 2008 R2, Windows Server 2000, Windows Server 2012, Windows 8

Use this topic to find the documentation resources and other technical information that you need to learn about the command shell, and to automate command-line tasks by using scripts or scripting tools.

To read introductory information about the command shell and command-line tools, see Feature description. To see a listing of new and deprecated command-line tools see New and deprecated functionality.

To find information about a specific command, in the following A-Z menu, click the letter that the command starts with, and then click the command name.

Prerequisites

The information that is contained in this overview applies to:

Windows Server 2012

WindowsВ ServerВ 2008В R2

WindowsВ ServerВ 2008

WindowsВ ServerВ 2003В R2

WindowsВ ServerВ 2003

Feature description

New and deprecated functionality

New or Deprecated?

Create a new cluster or configure an existing cluster.

Configure DFS folders and folder targets in a DFS namespace.

Creates and manages File Server Resource Manager quotas.

Create and manage file groups, file screens, file screen exceptions, and file screen templates that are used to configure general administrative options for screening files.

Enable optional features in Windows by downloading required files from WindowsВ Update or a source that Group Policy specifies.

Read, write, run, debug, and test Windows PowerShell scripts and modules in a friendly, graphic-assisted environment.

Install or remove roles, role services, and features.

Monitor an RD Session Host session.

Create and manage storage reports and storage report tasks, and configure general administrative options for File Server Resource Manager.

Command shell overview

The command shell is a software program that provides direct communication between the user and the operating system. The non-graphical, command shell user interface provides the environment in which you run character-based applications and utilities. The command shell executes programs and displays their output on the screen by using individual characters similar to the MS-DOS command interpreter, Command.com. The command shell in the Windows Server operating system uses the command interpreter, Cmd.exe. Cmd.exe loads applications, directs the flow of information between applications, and translates user input into a form that the operating system understands.

You can use the command shell to create and edit scripts to automate routine tasks. For example, you can create simple scripts in batch (.bat) files to automate the management of user accounts or nightly backups. You can also use the command-line version of Windows Script Host to run more sophisticated scripts in the command shell. For more information, see Cscript or Wscript. You can perform operations more efficiently by using scripts than you can by using the user interface. Scripts accept all commands that are available at the command line.

Customize the Command Prompt window

You can change the properties for the Command Prompt window.

To configure the Command Prompt window

Open a Command Prompt window, click the upper-left corner of the Command Prompt window, and then click Properties. (Or to open Command Prompt Properties from the keyboard, press ALT+SPACEBAR+P.)

Click the Options tab.

In Command History, type or select 999 in Buffer Size, and then type or select 5 in Number of Buffers. By increasing the screen buffer size to 999, you enable scrolling through the Command Prompt window. By increasing the number of buffers to five, you increase the number of lines in the Command Prompt window to 5000.

In Edit Options, select the Quick Edit Mode and Insert Mode check boxes.

Click the Layout tab.

In Screen Buffer Size, type or select 2500 in Height.

To further customize your Command Prompt window settings, perform any of the following optional tasks:

In Screen Buffer Size, increase Width.

In Window Size, increase Height.

In Window Size, increase Width.

Clear the Let system position window check box, and then, in Window Position, change the values in Left and Top.

In the Apply Properties dialog box, click Save properties for future windows with same title.

To enable or disable file and directory name completion on a computer or user logon session, run Regedit.exe and set the following REG_DWORD value : HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\CompletionChar\REG_DWORD To set the REG_DWORD value, use the hexadecimal value of a control character for a particular function (for example, 0Г—9 is Tab and 0Г—08 is Backspace). User-specified settings take precedence over computer settings, and command-line options take precedence over registry settings.

Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer.

Command-line reference A-Z

To find information about a specific command, in the following A-Z menu, click the letter that the command starts with, and then click the command name.

Each command-line tool topic displays the version of Windows that is supported by the command-line tool.