Question

我批量调用powershell命令，并希望将$ tmpVersion保存到批处理变量“version”。

set version = powershell.exe -Command "$tmpVersion = (Get-ItemProperty 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\myapp').DisplayVersion;"

Answer 1

您可以使用For循环将命令的结果保存为变量：

powershell.exe示例：

@Echo Off
Set "RegRoot=HKLM"
Set "RegKey=SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\myapp"
Set "RegVal=DisplayVersion"
Set "Version="
For /F %%A In (
    'PowerShell -NoP -NoL "(GP '%RegRoot%:%RegKey%').%RegVal%" 2^>Nul'
) Do Set "Version=%%A"
If Not Defined Version Exit /B
Echo %Version%
Pause

reg.exe示例：

@Echo Off
Set "RegRoot=HKLM"
Set "RegKey=SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\myapp"
Set "RegVal=DisplayVersion"
Set "Version="
For /F "Tokens=2*" %%A In ('Reg Query "%RegRoot%\%RegKey%" /V "%RegVal%" 2^>Nul'
) Do Set "Version=%%B"
If Not Defined Version Exit /B
Echo %Version%
Pause

WMIC.exe示例：

@Echo Off
Set "RegRoot=&H80000002"
Set "RegKey=SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\myapp"
Set "RegVal=DisplayVersion"
Set "Version="
For /F Tokens^=2Delims^=^" %%A In ('WMIC Class StdRegProv
     Call GetStringValue hDefKey^="%RegRoot%" sSubKeyName^="%RegKey%"
      sValueName^="%RegVal%" 2^>Nul') Do Set "Version=%%A"
If Not Defined Version Exit /B
Echo %Version%
Pause

如何将变量从PowerShell传递到批处理变量

1 个答案: