匹配两个列表并使用Powershell查找卸载字符串

问题描述

我的脚本有问题。我想制作一个脚本，该脚本列出在特定注册表路径中找到的软件列表并查看该软件是否等同于已安装的软件。如果是这样，它应该向我输出卸载字符串。但现在它无法按需工作。即使它相似，也永远不会显示我想要的输出。作为示例，我将Git程序作为品牌，在软件中我获得了Git版本2.26.2，但是当我选择git时，它不会输出卸载字符串。

我的代码是：

$branding = Get-ChildItem "HKLM:\Software\DLR\branding" | Get-ItemProperty | Select-Object -expandProperty ProgramName
$software = Get-ChildItem -Path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall,HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall | Get-ItemProperty | Select-Object -ExpandProperty displayName

ForEach ($brandinglist in $branding) {
    $objComboBox.Items.Add("$brandinglist")
}

$objComboBox_SelectedindexChanged=
{
    $selectme = $objComboBox.SelectedItem
    Write-Host $selectme
    if ("$selectme" -like "*$software*") {
        $uninstall = Get-ChildItem -Path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall,HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall | Get-ItemProperty | Where-Object {$_.displayName -match "$electme" } | Select-Object -Property UninstallString
        Write-Host "$uninstall"
    }
}

解决方法

您尝试的-like比较是错误的，在该比较中，您将选定的项目与显示名数组进行了比较，而显示名数组则无法正常工作。

此外，没有理由使用几乎相同的代码两次获取“卸载”字符串和“显示名称”。

尝试

# get a string array of program names
$branding = Get-ChildItem -Path 'HKLM:\Software\DLR\Branding' | Get-ItemProperty | Select-Object -ExpandProperty ProgramName

$regPaths = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall','HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall'
# get an object array of DisplayName and UninstallStrings
$software = Get-ChildItem -Path $regPaths | Get-ItemProperty | Select-Object DisplayName,UninstallString

# fill the combobox with the (string array) $branding
$objCombobox.Items.AddRange($branding)

$objComboBox.Add_SelectedIndexChanged ({
    $selectme = $objCombobox.SelectedItem
    Write-Host $selectme
    # get the objects that have a displayname like the selected item and write out the matching Uninstall strings
    $software | Where-Object {$_.DisplayName -like "*$selectme*" } | ForEach-Object {
        Write-Host $_.UninstallString
    }
})

operators powershell windows windows