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Windows下如何使用bat批处理文件读取注册表代码

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Windows下通过bat批处理文件读取注册表代码原来bat批处理可以做这么复杂的事情

@ECHO OFF
:: Check Windows version
IF NOT "%OS%"=="Windows_NT" GOTO Syntax
:: Check command line arguments:
:: 2 required plus 1 optional, "?" or "/?" for help screen
ECHO.%* | FIND "?" >NUL
IF NOT ERRORLEVEL 1 GOTO Syntax
IF     "%~2"=="" GOTO Syntax
IF NOT "%~4"=="" GOTO Syntax
IF NOT "%~3"=="" IF /I NOT "%~3"=="/K" GOTO Syntax
:: Check if either FINDSTR or EGREP is available
SET FINDSTR=
FINDSTR.EXE /? >NUL 2>&1
IF ERRORLEVEL 1 (
	EGREP.EXE --help >NUL 2>&1
	IF ERRORLEVEL 1 GOTO Syntax
	SET FINDSTR=EGREP
)
:: Keep variables local
SETLOCAL
:: Read variables from command line
SET RegSection=%~1
SET RegKey=%~2
SET RegVal=
IF /I "%~3"=="/K" (SET VarName=_%RegKey%) ELSE (SET VarName=RegVal)
:: Delete temporary file if it already exists
IF EXIST "%Temp%.\_readreg.dat" DEL "%Temp%.\_readreg.dat"
:: Store content of registry section in temporary file
START /WAIT REGEDIT.EXE /E "%Temp%.\_readreg.dat" "%~1"
:: Abort with error message if the section wasn't found in the registry
IF NOT EXIST "%Temp%.\_readreg.dat" (
	ECHO.
	ECHO ERROR:  [%RegSection%]  not found
) 1>&2
IF NOT EXIST "%Temp%.\_readreg.dat" (
	ENDLOCAL
	GOTO:EOF
)
:: Use either FINDSTR or EGREP to search requested value in temporary file.
:: Note: TYPE is used here because the temporary file may be in Unicode.
IF "%FINDSTR%"=="EGREP" (
	FOR /F "tokens=1* delims==" %%A IN ('TYPE "%Temp%.\_readreg.dat" 2^>NUL ^| EGREP.EXE -i "^^\"?%~2\"?="') DO (
		SET RegKey=%%~A
		SET RegVal=%%~B
	)
) ELSE (
	FOR /F "tokens=1* delims==" %%A IN ('TYPE "%Temp%.\_readreg.dat" 2^>NUL ^| FINDSTR.EXE /I /B /R /C:"\"%~2\"="') DO (
		SET RegKey=%%~A
		SET RegVal=%%~B
	)
)
:: Format and display the result
IF DEFINED RegVal (SET RegVal=%RegVal:\\=\%) ELSE (SET RegVal= - Undefined -)
ECHO.
ECHO [%RegSection%]
ECHO %RegKey%=%RegVal%
:: Delete temporary file
:: IF EXIST "%Temp%.\_readreg.dat" DEL "%Temp%.\_readreg.dat"
:: Pass result in variable to calling environment and end program
ENDLOCAL & SET %VarName%=%RegVal%
GOTO:EOF
:Syntax
ECHO.
ECHO ReadReg.bat,  Version 2.10 for Windows NT 4 and later
ECHO Read a value from the registry and store it in an environment variable
ECHO.
ECHO Usage:    READREG  "section"  "key"  [ /K ]
ECHO.
ECHO Where:             "section"  is the section name, without brackets
ECHO                    "key"      is the key whose value must be read
ECHO                    /K         uses "_key" for environment value name
ECHO.
:: In case we use NT 4 we have multiple notes, otherwise one single note
VER | FIND "Windows NT" >NUL
IF     ERRORLEVEL 1 ECHO Note:     The result is stored in an environment variable %%RegVal%%,
VER | FIND "Windows NT" >NUL
IF NOT ERRORLEVEL 1 ECHO Notes:    The result is stored in an environment variable %%RegVal%%,
ECHO           unless /K switch is used.
:: Message for NT 4 about FINDSTR and EGREP availability
VER | FIND "Windows NT" >NUL
IF ERRORLEVEL 1 GOTO Example
ECHO           This batch file uses either FINDSTR or EGREP to search for the
ECHO           the requested value.
ECHO           FINDSTR is part of the Windows NT 4 Resource Kit, available at
ECHO           http://www.microsoft.com/ntserver/nts/downloads/recommended/ntkit/
ECHO           EGREP is available at http://unxutils.sourceforge.net/ and
ECHO           several other sites.
:Example
ECHO.
ECHO Example:  READREG  "HKEY_CURRENT_USER\Environment"  "path"  /K
ECHO           should store the user part of the PATH variable in _PATH variable
ECHO.
ECHO Written by Rob van der Woude
ECHO http://www.robvanderwoude.com

ReadReg.bat,&nbsp&nbspVersion&nbsp2.10&nbspfor&nbspWindows&nbspNT&nbsp4&nbspand&nbsplaterRead&nbspa&nbspvalue&nbspfrom&nbspthe&nbspregistry&nbspand&nbspstore&nbspit&nbspin&nbspan&nbspenvironment&nbspvariableUsage:&nbsp&nbsp&nbsp&nbspREADREG&nbsp&nbsp”section”&nbsp&nbsp”key”&nbsp&nbsp[&nbsp/K&nbsp]Where:&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp”section”&nbsp&nbspis&nbspthe&nbspsection&nbspname,&nbspwithout&nbspbrackets&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp”key”&nbsp&nbsp&nbsp&nbsp&nbsp&nbspis&nbspthe&nbspkey&nbspwhose&nbspvalue&nbspmust&nbspbe&nbspread&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp/K&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspuses&nbsp”_key”&nbspfor&nbspenvironment&nbspvalue&nbspnameNote:&nbsp&nbsp&nbsp&nbsp&nbspThe&nbspresult&nbspis&nbspstored&nbspin&nbspan&nbspenvironment&nbspvariable&nbsp%RegVal%,&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspunless&nbsp/K&nbspswitch&nbspis&nbspused.Example:&nbsp&nbspREADREG&nbsp&nbsp”HKEY_CURRENT_USER\Environment”&nbsp&nbsp”path”&nbsp&nbsp/K&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspshould&nbspstore&nbspthe&nbspuser&nbsppart&nbspof&nbspthe&nbspPATH&nbspvariable&nbspin&nbsp_PATH&nbspvariableWritten&nbspby&nbspRob&nbspvan&nbspder&nbspWoudehttp://www.robvanderwoude.com


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