Question

我正在尝试制作一个 PowerShell 脚本来修改为 .ps1 文件扩展名设置默认应用程序的注册表值。遗憾的是，我无法深入了解脚本，因为 PSDrive 没有 HKEY_CLASSES_ROOT 的路径不存在。

使用以下方法在 Microsoft 网站上找到解决方案后：

New-PSDrive -PSProvider registry -Root 'HKEY_CLASSES_ROOT' -Name 'HKCR'

然后我想在继续之前添加一些代码来检查此 PSDrive 路径是否已设置，因此现在它出现在脚本的顶部，如下所示：

#####
IF (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) { Write-Host "Requesting administration privileges..."; Start-Sleep -s 2; Start-Process powershell.exe "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`"" -Verb RunAs; exit }

Write-Host "Administration privileges have been granted."
Start-Sleep -s 2
#####

Write-Host "Checking if 'HKEY_CLASSES_ROOT' path has been set...`n"

If (Get-PSDrive | Where{$_.Name -CMatch 'HKCR' -and $_.Root -CMatch 'HKEY_CLASSES_ROOT'}) {
    Write-Output "Path has already been set"
} Else {
    Write-Output "Path has not been set. Setting path now..."
    New-PSDrive -PSProvider registry -Root 'HKEY_CLASSES_ROOT' -Name 'HKCR' >$Null 2>&1
}

Write-Host "`nDone"
Start-Sleep -s 2

Write-Host "Setting .PS1 (PowerShell scripts extension) file association with VS Code... " -NoNewLine
Set-ItemProperty -Path "HKCR:\Microsoft.PowerShellScript.1\Shell\Open\Command" -Name "(Default)" -Value {C:\Program Files\Microsoft VS Code\Code.exe "%1"}
Start-Sleep -s 2
Write-Host "Done"
Exit

很遗憾，我无法使用以下 IF 语句：

If (Get-PSDrive | Where{$_.Name -CMatch 'HKCR' -and $_.Root -CMatch 'HKEY_CLASSES_ROOT'}) {
    Write-Output "Path has already been set"
} Else {
    Write-Output "Path has not been set. Setting path now..."
    New-PSDrive -PSProvider registry -Root 'HKEY_CLASSES_ROOT' -Name 'HKCR' >$Null 2>&1
}

在运行命令时，我总是看到以下消息（“Else”语句），每次我重新运行脚本时，我都看不到“If”语句：

Path has not been set. Setting path now...

更新 1

第 2 行的一行代码是将 PowerShell 脚本提升为管理员权限。第 3 行和第 4 行是让用户知道脚本已被提升。

我用 Write-Output 而不是冗长的代码尝试了你的代码，但我仍然看不到与“If”语句匹配的响应。

Write-Host "Checking if 'HKEY_CLASSES_ROOT' path has been set...`n"

If (Get-PSDrive | 
    Where {
            ($PSitem.Name -Match 'HKCR') -and 
            ($PSitem.Root -Match 'HKEY_CLASSES_ROOT')
          }
   )
{Write-Output "Path has already been set"}
Else
{
    Write-Output "Path has not been set. Setting path now..."
    New-PSDrive -PSProvider registry -Root "HKEY_CLASSES_ROOT" -Name "HKCR" >$Null 2>&1
}

但是，如果我手动设置 PSDrive：

New-PSDrive -PSProvider registry -Root "HKEY_CLASSES_ROOT" -Name "HKCR" >$Null 2>&1

然后检查它是否存在：

PS D:\Users\Will> Get-PSDrive | Where{$_.Name -Match 'HKCR' -and $_.Root -Match 'HKEY_CLASSES_ROOT'}

Name           Used (GB)     Free (GB) Provider      Root                                               CurrentLocation
----           ---------     --------- --------      ----                                               ---------------
HKCR                                   Registry      HKEY_CLASSES_ROOT

这工作得很好。我只想让我的脚本检查一下，如果尚未设置 PSDrive，则设置它。

Answer 1

试试这些重构的部分。

If (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::
   GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator'
    )
) 
{ 
    Write-Host 'Requesting administration privileges...'
    Start-Sleep -s 2
    Start-Process powershell.exe "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`"" -Verb RunAs
}


If (Get-PSDrive | 
    Where {
            ($PSitem.Name -eq 'HKCU') -and 
            ($PSitem.Root -eq 'HKEY_CURRENT_USER')
          }
   )
{Write-Verbose -Message 'Specified PSDrive valid' -Verbose}
Else
{
    Write-Warning -Message 'PSDrive not specific for the registry key specified.'e
}
# Results
<#
VERBOSE: Specified PSDrive valid
#>


If (Get-PSDrive | 
    Where {
            ($PSitem.Name -Match 'HKCR') -and 
            ($PSitem.Root -Match 'HKEY_CLASSES_ROOT')
          }
   )
{Write-Verbose -Message 'Specified PSDrive valid'}
Else
{
    Write-Warning -Message 'PSDrive not specific for the registry key specified.'
}
# Results
<#
WARNING: PSDrive not specific for the registry key specified.
#>

检查是否已使用 if else 语句设置了 PowerShell Drive

1 个答案: