how to use powershell to exec the command and get result

Question

I want to user powershell to exec the command and get the execute result

let's say i want to use msival2.exe to certificate the msi installation package, and the exe will give me the information DURING the certification process..

I use Invoke-Expression and like that...

$out_put = Invoke-Expression ".\msival2.exe $msiPackageName darice.cub"

I could get the result from $out_put, ONLY AFTER the certification....

How could I get the result DURING the process of command just like I run the msival2.exe manually...

Thanks

Answer 1

如果你想收集msival2.exe的输出并同时看到屏幕上显示的输出，我建议使用call运算符& ，并使用Tee-Object将输出复制到变量：

& .\msival2.exe $msiPackageName darice.cub |Tee-Object -Variable out_path