7 Help

For old MSDOS commands, see DOS Command reference

ASSOC		Displays or modifies file extension associations
AT		Schedules commands and programs to run on a computer.
ATTRIB		Displays or changes file attributes.
BREAK		Sets or clears extended CTRL+C checking.
CACLS		Displays or modifies access control lists (ACLs) of files.
CALL		Calls one batch program from another.
CD		Displays the name of or changes the current directory.
CHCP		Displays or sets the active code page number.
CHDIR		Displays the name of or changes the current directory.
CHKDSK		Checks a disk and displays a status report.
CLS		Clears the screen.
CMD		Starts a new instance of the Windows NT command interpreter.
COLOR		Sets the default console foreground and background colors.
COMP		Compares the contents of two files or sets of files.
COMPACT		Displays or alters the compression of files on NTFS partitions.
CONVERT		Converts FAT volumes to NTFS. You cannot convert the current drive.
COPY		Copies one or more files to another location.
DATE		Displays or sets the date.
DEL		Deletes one or more files.
DIR		Displays a list of files and subdirectories in a directory.
DISKCOMP		Compares the contents of two floppy disks.
DISKCOPY		Copies the contents of one floppy disk to another.
DOSKEY		Edits command lines, recalls Windows NT commands, and creates macros.
ECHO		Displays messages, or turns command echoing on or off.
ENDLOCAL		Ends localization of environment changes in a batch file.
ERASE		Deletes one or more files.
EXIT		Quits the CMD.EXE program (command interpreter).
EXTRACT		Unpacks files from .CAB archives.
FC		Compares two files or sets of files, and displays the differences between them.
FIND		Searches for a text string in a file or files.
FINDSTR		Searches for strings in files.
FOR		Runs a specified command for each file in a set of files.
FORMAT		Formats a disk for use with Windows NT.
FTYPE		Displays or modifies file types used in file extension associations.
GOTO		Directs the Windows NT command interpreter to a labeled line in a batch program.
GRAFTABL		Enables Windows NT to display an extended character set in graphics mode.
HELP		Provides Help information for Windows NT commands.
IF		Performs conditional processing in batch programs.
KEYB		Configures a keyboard for a specific language.
KILL		Stops currently running processes
LABEL		Creates, changes, or deletes the volume label of a disk.
MD		Creates a directory.
MKDIR		Creates a directory.
MODE		Configures a system device.
MORE		Displays output one screen at a time.
MOVE		Moves one or more files from one directory to another directory on the same drive.
PATH		Displays or sets a search path for executable files.
PAUSE		Suspends processing of a batch file and displays a message.
POPD		Restores the previous value of the current directory saved by PUSHD.
PRINT		Prints a text file.
PROMPT		Changes the Windows NT command prompt.
PUSHD		Saves the current directory then changes it.
RD		Removes a directory.
RECOVER		Recovers readable information from a bad or defective disk.
REM		Records comments (remarks) in batch files or CONFIG.SYS.
REN		Renames a file or files.
RENAME		Renames a file or files.
REPLACE		Replaces files.
RESTORE		Restores files that were backed up by using the BACKUP command.
RMDIR		Removes a directory.
SET		Displays, sets, or removes Windows NT environment variables.
SETLOCAL		Begins localization of environment changes in a batch file.
SHIFT		Shifts the position of replaceable parameters in batch files.
SORT		Sorts input.
START		Starts a separate window to run a specified program or command.
SUBST		Associates a path with a drive letter.
TIME		Displays or sets the system time.
TITLE		Sets the window title for a CMD.EXE session.
TLIST		Lists currently running processes
TREE		Graphically displays the directory structure of a drive or path.
TYPE		Displays the contents of a text file.
VER		Displays the Windows NT version.
VERIFY		Tells Windows NT whether to verify that your files are written correctly to a disk.
VOL		Displays a disk volume label and serial number.
XCOPY		Copies files and directory trees.

This HTML help file was generated by:
AllHelp.bat, Version 1.24 for Windows NT 4 / 2000 / XP
Written by Rob van der Woude
http://www.robvanderwoude.com

And modified by Massmind members to add information and notes.

Redirecting both stdout and stderr

NT allows the selective redirection of the standard input (stdin), standard output (stdout) and standard error (stderr) files by reference to their file handles: 0 = stdin, 1 = stdout, 2 = stderr. A command such as
SAMPLE.CMD >SAMPLE.LOG
works as it did under MS-DOS, capturing all output that SAMPLE.CMD writes to the stdout file. In Windows NT, you could also use the following equivalent:
SAMPLE.CMD 1>SAMPLE.LOG
However, most programs send their most important diagnostic information to the standard error file, rather than standard output. To capture both stdout and stderr, you could use:
SAMPLE.CMD 1>SAMPOUT.LOG 2>SAMPERR.LOG
To capture both stdout and stderr to the same file, redirect stderr to the stdout file handle:
SAMPLE.CMD 1>SAMPLE.LOG 2>&1

This is probably most useful in scheduled tasks.

This syntax can lead to misinterpretation when the command being redirected ends with a number. For example:echo test 2>test.txt

Will actually echo "test" to the console and create an empty test.txt file. To compensate, surround the command in ()
(echo test 2)>test.txt

or place the destination first
>test.txt echo test 2

Windows NT4 / XP / 7 Help

Redirecting both stdout and stderr

Welcome to massmind.org!

Welcome to techref.massmind.org!