powershell - 根据版本号和其他一些标准比较文件并格式化输出

Question

我正在使用Powershell中的比较对象根据大小、上次写入时间和版本号比较 2 个文件。我正在得到结果。唯一的问题是如何从结果中获取版本号的值。

   function dll_compare(){
   param($path1,$path2) 
   $first = Get-ChildItem -Path $path1 -Filter *.dll
   $second =  Get-ChildItem -Path $path2 -Filter *.dll
   $diff = Compare-Object -ReferenceObject $first -DifferenceObject $second -Property Name, Length, LastWriteTime, VersionInfo -PassThru  | Select Name, Length, LastWriteTime, sideindicator,@{n="path";e={$_.fullname}},@{n="VersionInfo";e={$_|Select-Object -ExpandProperty VersionInfo |Select-Object -Property Productversion}}
   $diff}

结果采用以下格式：我希望 versioninfo 包含该值，而不是“@{ProductVersion=10.0.10240.16384}”

Name          : PhotoViewer.dll    
Length        : 1827328    
LastWriteTime : 7/10/2015 4:31:20 PM    
SideIndicator : <=    
path          : D:\Site1\Dlls\PhotoViewer.dll    
VersionInfo   : @{ProductVersion=10.0.10240.16384}

Answer 1

替换这一行：

$diff = Compare-Object -ReferenceObject $first -DifferenceObject $second -Property Name, Length, LastWriteTime, VersionInfo -PassThru  | Select Name, Length, LastWriteTime, sideindicator,@{n="path";e={$_.fullname}},@{n="VersionInfo";e={$_|Select-Object -ExpandProperty VersionInfo |Select-Object -Property Productversion}

和

$diff = Compare-Object -ReferenceObject $first -DifferenceObject $second -Property Name, Length, LastWriteTime, VersionInfo -PassThru |
    Select Name, Length, LastWriteTime, sideindicator,@{n = "path"; e ={ $_.fullname }}, @{n = "VersionInfo"; e = { $_.VersionInfo.Productversion }