powershell - 如何从 1 个设备中获取添加删除程序列表并将其与其他设备进行比较

Question

我有几个远程设备，我需要在其中比较使用 powershell 的设备的添加删除程序。我该怎么做。谁能帮我。

例子：-

需要比较“A 计算机”与“A1 计算机”和“B 计算机”与“B2 计算机”的 appremove 程序。

Answer 1

Microsoft Scripting Guy建议检查注册表而不是非常慢的Win32_Product类。这是他们按名称搜索计算机列表的示例：

$computers = Import-Csv “C:\PowerShell\computerlist.csv”
$array = @()

foreach($pc in $computers){
    $computername=$pc.computername

    #Define the variable to hold the location of Currently Installed Programs
    $UninstallKey=”SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall” 

    #Create an instance of the Registry Object and open the HKLM base key
    $reg=[microsoft.win32.registrykey]::OpenRemoteBaseKey(‘LocalMachine’,$computername) 

    #Drill down into the Uninstall key using the OpenSubKey Method
    $regkey=$reg.OpenSubKey($UninstallKey) 

    #Retrieve an array of string that contain all the subkey names
    $subkeys=$regkey.GetSubKeyNames() 

    #Open each Subkey and use GetValue Method to return the required values for each
    foreach($key in $subkeys){
        $thisKey=$UninstallKey+”\\”+$key 
        $thisSubKey=$reg.OpenSubKey($thisKey) 
        $obj = New-Object PSObject
        $obj | Add-Member -MemberType NoteProperty -Name “ComputerName” -Value $computername
        $obj | Add-Member -MemberType NoteProperty -Name “DisplayName” -Value $($thisSubKey.GetValue(“DisplayName”))
        $obj | Add-Member -MemberType NoteProperty -Name “DisplayVersion” -Value $($thisSubKey.GetValue(“DisplayVersion”))
        $obj | Add-Member -MemberType NoteProperty -Name “InstallLocation” -Value $($thisSubKey.GetValue(“InstallLocation”))
        $obj | Add-Member -MemberType NoteProperty -Name “Publisher” -Value $($thisSubKey.GetValue(“Publisher”))
        $array += $obj
    } 
}
$array | Where-Object { $_.DisplayName } | select ComputerName, DisplayName, DisplayVersion

我们可以比较对象列表Compare-Object以查看 B PC 中缺少哪些软件：

$ComputerA = $array | Where-Object { $_.ComputerName -like 'ComputerA' } 
$ComputerB = $array | Where-Object { $_.ComputerName -like 'ComputerB' } 

Compare-Object $ComputerA $ComputerB -Property DisplayName,DisplayVersion

DisplayName            DisplayVersion SideIndicator
-----------            -------------- -------------
Notepad++ (64-bit x64) 7.8.9          <=