Powershell 将UNC路径转换为NTFS本地路径

在powershell中将UNC位置转换为本地驱动器时遇到问题。所以我的代码基本上是将用户作为读取主机的输入作为DB备份位置的UNC路径。位置可以是这样的

\\ServerName\m$\SQLBackups\123

然后，它会提示从何处复制备份。这也是一个UNC路径，例如

\\ServerName\g$\SQLRestores\444\Filename.bak

我需要将这两个路径都转换为它们的本地路径，以便它读取

m:\sqldbackups\123

和

g:\sqlrestores\444\Filename.bak

下面是我的代码，我添加了一条注释，说明了我希望最终输出的内容

$BackupPath = "\\ServerName\m$\SQLBackups\123"
$Dumps = Split-Path -Path $BackupPath -Leaf
$Drive = Split-Path -Path $BackupPath -Parent
$LastTwo = $Drive.Substring($Drive.get_Length()-2)


$FullNTFS = $LastTwo + "\" + $Dumps
$FullNTFS = $FullNTFS.Replace("$",":")
$FullNTFS 
#This should be M:\SQLBACKUPS\123

$RestorePath = "\\ServerName\g$\SQLRestores\444\Filename.bak"
$Dumps = Split-Path -Path $RestorePath -Leaf
$Drive = Split-Path -Path $RestorePath -Parent
$LastTwo = $Drive.Substring($Drive.get_Length()-2)


$FullNTFS = $LastTwo + "\" + $Dumps
$FullNTFS = $FullNTFS.Replace("$",":")
$FullNTFS 
#This should be read as g:\sqlrestores\444\FileName.bak

---

Split Path

除非路径指向共享根目录或文件，否则无法工作

改为使用以获取主机名和共享名：

$Drive = [System.IO.Path]::GetPathRoot($BackupPath)
$Dumps = $BackupPath.Substring($Drive.Length)
$Drive = $Drive.Substring($Drive.LastIndexOf('\') + 1).Replace('$',':')
$NTFSPath = "$Drive$Dumps"

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我认为上面的答案是正确的，但有时简单的模式匹配可能就足够了：

"\\server2.net\g$\foo\bar\baz", "\\server1.com\c$\baz\bar\foo" |
Select-String -Pattern "([A-z])\`$(.*)" |
%{ "$($_.Matches.Groups[1].value):$($_.Matches.Groups[2].value)" }

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这真是一个很好的方法！我还想在驱动器号中添加

ToUpper（）

，但这只是虚荣：）正是我想要的。非常感谢。为了获得文件名，我做了$FileName=拆分路径$BackupPath-leaf

# -replace operator with regex does the trick
PS C:\> '\\ServerName\m$\SQLBackups\123' -replace '(?:.+)\\([a-z])\$\\','$1:\'
m:\SQLBackups\123