我希望我的批处理文件只运行提升。如果没有提升,为用户提供一个选项,以提升的方式重新启动批处理。

我正在编写一个批处理文件来设置一个系统变量,将两个文件复制到Program files位置,并启动一个驱动程序安装程序。如果Windows 7/Windows Vista用户(启用了UAC,即使他们是本地管理员)在没有右键单击并选择“以管理员身份运行”的情况下运行它,他们将得到“访问拒绝”,复制这两个文件并写入系统变量。

如果用户实际上是管理员,我想使用一个命令自动重新启动提升的批处理。否则,如果他们不是管理员,我想告诉他们,他们需要管理员权限来运行批处理文件。我使用xcopy复制文件和REG ADD写入系统变量。我正在使用这些命令来处理可能的Windows XP机器。我在这个主题上发现了类似的问题,但没有一个是关于重新启动批处理文件的。


当前回答

您可以使用psexec的-h选项让脚本调用自身以提升运行。

我不确定你如何检测到它是否已经处于升高状态……也许只有在出现“访问被拒绝”错误时才会重新尝试提升烫发?

或者,你可以简单地让xcopy和reg.exe命令总是使用psexec -h运行,但是如果最终用户每次都需要输入密码(或者如果你在脚本中包含密码则不安全),这对他们来说会很烦人……

其他回答

正如jcoder和Matt提到的,PowerShell使它变得很容易,甚至可以在不创建新脚本的情况下嵌入到批处理脚本中。

我修改了马特的剧本:

:: Check privileges 
net file 1>NUL 2>NUL
if not '%errorlevel%' == '0' (
    powershell Start-Process -FilePath "%0" -ArgumentList "%cd%" -verb runas >NUL 2>&1
    exit /b
)

:: Change directory with passed argument. Processes started with
:: "runas" start with forced C:\Windows\System32 workdir
cd /d %1

:: Actual work

Matt给出了一个很好的答案,但它去掉了传递给脚本的任何参数。下面是我对参数的修改。我还在Windows 8中加入了Stephen对工作目录问题的修复。

@ECHO OFF
setlocal EnableDelayedExpansion

::net file to test privileges, 1>NUL redirects output, 2>NUL redirects errors
NET FILE 1>NUL 2>NUL
if '%errorlevel%' == '0' ( goto START ) else ( goto getPrivileges ) 

:getPrivileges
if '%1'=='ELEV' ( goto START )

set "batchPath=%~f0"
set "batchArgs=ELEV"

::Add quotes to the batch path, if needed
set "script=%0"
set script=%script:"=%
IF '%0'=='!script!' ( GOTO PathQuotesDone )
    set "batchPath=""%batchPath%"""
:PathQuotesDone

::Add quotes to the arguments, if needed.
:ArgLoop
IF '%1'=='' ( GOTO EndArgLoop ) else ( GOTO AddArg )
    :AddArg
    set "arg=%1"
    set arg=%arg:"=%
    IF '%1'=='!arg!' ( GOTO NoQuotes )
        set "batchArgs=%batchArgs% "%1""
        GOTO QuotesDone
        :NoQuotes
        set "batchArgs=%batchArgs% %1"
    :QuotesDone
    shift
    GOTO ArgLoop
:EndArgLoop

::Create and run the vb script to elevate the batch file
ECHO Set UAC = CreateObject^("Shell.Application"^) > "%temp%\OEgetPrivileges.vbs"
ECHO UAC.ShellExecute "cmd", "/c ""!batchPath! !batchArgs!""", "", "runas", 1 >> "%temp%\OEgetPrivileges.vbs"
"%temp%\OEgetPrivileges.vbs" 
exit /B

:START
::Remove the elevation tag and set the correct working directory
IF '%1'=='ELEV' ( shift /1 )
cd /d %~dp0

::Do your adminy thing here...

我把这个粘贴在脚本的开头:

:: BatchGotAdmin
:-------------------------------------
REM  --> Check for permissions
>nul 2>&1 "%SYSTEMROOT%\system32\icacls.exe" "%SYSTEMROOT%\system32\config\system"

REM --> If error flag set, we do not have admin.
if '%errorlevel%' NEQ '0' (
    echo Requesting administrative privileges...
    goto UACPrompt
) else ( goto gotAdmin )

:UACPrompt
    echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
    echo args = "" >> "%temp%\getadmin.vbs"
    echo For Each strArg in WScript.Arguments >> "%temp%\getadmin.vbs"
    echo args = args ^& strArg ^& " "  >> "%temp%\getadmin.vbs"
    echo Next >> "%temp%\getadmin.vbs"
    echo UAC.ShellExecute "%~s0", args, "", "runas", 1 >> "%temp%\getadmin.vbs"

    "%temp%\getadmin.vbs" %*
    exit /B

:gotAdmin
    if exist "%temp%\getadmin.vbs" ( del "%temp%\getadmin.vbs" )
    pushd "%CD%"
    CD /D "%~dp0"
:--------------------------------------

使用powershell。

如果cmd文件很长,我使用第一个需要提升,然后调用一个做实际工作。

如果脚本是一个简单的命令,那么所有内容都可以放在一个cmd文件中。不要忘记在脚本文件中包含路径。

模板:

@echo off
powershell -Command "Start-Process 'cmd' -Verb RunAs -ArgumentList '/c " comands or another script.cmd go here "'"

示例1:

@echo off
powershell -Command "Start-Process 'cmd' -Verb RunAs -ArgumentList '/c "powershell.exe -NoProfile -ExecutionPolicy Bypass -File C:\BIN\x.ps1"'"

示例2:

@echo off
powershell -Command "Start-Process 'cmd' -Verb RunAs -ArgumentList '/c "c:\bin\myScript.cmd"'"

我最近需要一个用户友好的方法,我根据这里和其他地方的贡献者的宝贵见解想出了这个方法。只需将这一行放在.bat脚本的顶部。欢迎您的反馈。

@pushd %~dp0 & fltmc | find "." && (powershell start '%~f0' ' %*' -verb runas 2>nul && exit /b)

无畏:

@pushd %~dp0 ensures a consistant working directory relative to this batch file; supports UNC paths fltmc a native windows command that outputs an error if run unelevated | find "." makes the error prettier, and causes nothing to output when elevated && ( if we successfully got an error because we're not elevated, do this... powershell start invoke PowerShell and call the Start-Process cmdlet (start is an alias) '%~f0' pass in the full path and name of this .bat file. Single quotes allow spaces in the path/file name ' %*' pass in any and all arguments to this .bat file. Funky quoting and escape sequences probably won't work, but simple quoted strings should. The leading space is needed to prevent breaking things if no arguments are present -verb runas don't just start this process...RunAs Administrator! 2>nul discard PowerShell's unsightly error output if the UAC prompt is canceled/ignored. && if we successfully invoked ourself with PowerShell, then... NOTE: in the event we don't obtain elevation (user cancels UAC), then && allows the .bat to continue running without elevation, such that any commands that require it will fail but others will work just fine. If you want the script to simply exit instead of running unelevated, make this a single ampersand: & exit /b) exits the initial .bat processing, because we don't need it anymore; we have a new elevated process currently running our .bat. Adding /b allows cmd.exe to remain open if the .bat was started from the command line...it has no effect if the .bat was double-clicked