对于/ f命令输出什么都不返回

Question

为什么我在批次上得到一个空的结果我尝试在下面做：

@echo off


 setlocal EnableDelayedExpansion


rem empty recycle bin
for /f "delims= " %%a in ('"wmic USERACCOUNT where name="%username%" get sid"') do (
   if not "%%a"=="SID" (          
      set myvar=%%a
   )   
)


cd %systemdrive%\$Recycle.Bin\!myvar!

echo The directory is change to %systemdrive%\$Recycle.Bin\!myvar!
pause

它没有显示myvar的值

Answer 1

这是你的脚本修复：

@Echo Off
Rem Empty recycle bin
For /F "Skip=1" %%A In ('WMIC UserAccount Where "Name='%UserName%'"^
 Get SID 2^>Nul') Do For %%B In (%%A) Do Set "MyVar=%%B"
CD /D "%SystemDrive%\$Recycle.Bin\%MyVar%" 2>Nul || Exit /B
Echo The directory has been changed to %CD%
Pause