Windows CMD windows

  • make default window bigger: right click menu on title bar, Defaults > Layout; Screen Buffer size 300×100

basic operation

determine the file itself

@echo Full path and filename: %~f0
@echo Drive: %~d0
@echo Path: %~p0
@echo Drive and path: %~dp0
@echo Filename without extension: %~n0
@echo Filename with    extension: %~nx0
@echo Extension: %~x0
@echo Filename as given on command line: %0
@echo Filename as given on command line minus quotes: %~0
@REM Build from parts
@SET drv=%~d0
@SET pth=%~p0
@SET fpath=%~dp0
@SET fname=%~n0
@SET ext=%~x0
@echo Simply Constructed name: %fpath%%fname%%ext%
@echo Fully  Constructed name: %drv%%pth%%fname%%ext%

call python file with same name

@echo off
call python

copy file and directory

copy d:\file1.txt g:\dir1\file1.txt
xcopy d:\download g:\dn /s /e

REM "copy without asking, replace by default
copy /y d:\file1.txt g:\dir1\file1.txt

edit file and directory attribute

attrib +r +a +s +h secureFile.txt
  • EQU, NEQ, substring, combine string
    @echo off
    REM YourPythonFileName_w.bat will launch without console
    REM YourPythonFileName.bat will launch with console
    set file=%~n0
    if "%file:~-2%" equ "_w" (
      start pythonw %~dp0%file:~0,
      goto done
    call python
  • export out all system environment variable
    set > filename.txt
  • display all or a environment variable value
    set path
    echo %PATH%
    reg query HKEY_CURRENT_USER\Environment /v path
    reg query "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v path
  • cust system var setup
    • Method 1: in run > SystemPropertiesAdvanced : environment
      Computer → Properties → Advanced System Settings → Advanced (tab) → Environment Variables
      // For user variable use
      path = %PATH%;D:/yourCustomPath
      path = D:/yourCustomPath
      path = C:/OtherPath;C:/AnotherOtherPath;D:/yourCustomPath
      // For system variable use
      path = C:/OtherPath;C:/AnotherOtherPath;D:/yourCustomPath
    • Method 2: in command window
      REM set variable for current session environment (means not working after you close this cmd)
      set z_sys=D:/z_sys
      REM set permanent variable for user environment
      setx z_sys D:/z_sys
      REM set permanent variable for system environment with admin rights
      setx /M z_sys D:/z_sys
    • Method 3.1: into register editor by cmd
      REM set permanent variable for user environment
      reg add HKEY_CURRENT_USER\Environment /v z_sys /d "D:/z_sys" /f
      REM set permanent variable for system environment
      reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment /v z_sys /d "D:/z_sys" /f
    • Method 3.2: into register editor by python with Extra Precision update instead of dump system environment value into user environment value
      # because the path will give both user path and system path, 
      # here is more detail on update only user path content without having system path repeated in user path
      import sys, subprocess
      userPathValue=subprocess.check_output("reg query HKCU\Environment /v path") # get original user path value
      userPath = userPathValue.split('REG_SZ')[-1].strip() # get clean value of the user path
      myExtraPath = "D:/"
      os.system('reg add HKCU\Environment /v path /d "'+ userPath + ';' + myExtraPath +'" /f')
    • Method 4: insert register entry by reg file
      Windows Registry Editor Version 5.00

CMD quick actions

  • clean run cmd list
    reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU" /va /f >nul 2>nul
  • cleanup recent file listing
    del %appdata%\microsoft\windows\recent\automaticdestinations\*
    del %appdata%\Microsoft\Windows\Recent\*

Batch file

  • add
    Windows Registry Editor Version 5.00 
    REG ADD HKCR\Control Panel\Desktop /v Wallpaper /t REG_SZ /d "%WINDIR%\Web\Wallpaper\aqua1024.jpg" /f
  • remove
  • empty

Windows specific command

  • list all the service
    net start


    sc query type= service
  • start telnet server
    net start telnet
  • list all port
    netstat -a
REM "format NTFS drive to FAT32 drive"
format /FS:FAT32 /Q X:
management panel
services.msc services panel
compmgmt.msc computer manager
devmgmt.msc device manager
fonts fonts folder
control control panel
control userpasswords2 user manager
control date/time date and time
control desktop display property
control color appearance theme
control panel control somefile.cpl,<optional arguments>
access.cpl Accessibility controls Keyboard(1), Sound(2), Display(3), Mouse(4), General(5)
appwiz.cpl Add/Remove Programs
desk.cpl Display properties Themes(5), Desktop(0), Screen Saver(1), Appearance (2), Settings(3)
hdwwiz.cpl Add hardware
inetcpl.cpl Configure Internet Explorer and Internet properties General(0), Security(1), Privacy(2), Content(3), Connections(4), Programs(5), Advanced(6)
intl.cpl Regional settings Regional Options(1), Languages(2), Advanced(3)
joy.cpl Game controllers
main.cpl Mouse properties and settings Buttons(0), Pointers(1), Pointer Options(2), Wheel(3), Hardware(4)
main.cpl,@1 Keyboard properties Speed(0), Hardware (1)
mmsys.cpl Sounds and Audio Volume(0), Sounds(1), Audio(2), Voice(3), Hardware(4)
ncpa.cpl Network properties
nusrmgr.cpl User accounts
powercfg.cpl Power configuration Power Schemes, Advanced, Hibernate, UPS (Tabs not indexed)
sysdm.cpl System properties General(0), Computer Name(1), Hardware(2), Advanced(3), System Restore(4), Automatic Updates(5), Remote (6)
telephon.cpl Phone and modem options Dialing Rules(0), Modems(1), Advanced(2)
timedate.cpl Date and time properties Date & Time(0), Time Zone(1), Internet Time (no index)


set default sound device nircmd.exe setdefaultsounddevice “Speakers_TheNameInPanel”
close folder windows nircmd.exe win close class “CabinetWClass”
close empty cmd windows nircmd.exe win close title “C:\Windows\system32\cmd.exe”
off monitor nircmd.exe monitor off
off computer nircmd.exe exitwin poweroff force
pop dialog nircmd.exe trayballoon “Hello” “This is a test…” “shell32.dll,22” 15000
windows control

MS sysinternal suite