如何在返回名称与驱动器相关的文件时查询临时 PS 驱动器? [英] How can I query a temporary PS-Drive while returning files with a name relative to the drive?
问题描述
我正在尝试创建一个脚本，我将在其中搜索文件服务器的非继承权限.结果，我遇到了文件名 260 个字符的限制.我看到的一个建议，我认为会有所帮助，有几次是创建一些非持久性的 PS 驱动器，深度为几个级别并查询它们.
I am trying to create a script where I will be searching the file servers for non inherited permissions. I have run into the 260 character limit for file names as a result. A suggestion I saw, that I thought would help, a couple of times was to create some non persistent PS Drives a couple of levels deep and query those.
问题是当我对新的 PS 驱动器使用 Get-ChildItem 时，它返回带有完整网络路径的对象，不使用我分配的名称.
Problem is when I use Get-ChildItem against the new PS Drives it is returning object with the full network path and not using the name I assigned it.
# Cycle the folders
Get-ChildItem $rootPath -Directory | select -first 1 | ForEach-Object{
$target = $_
# Create a PS Drive for each sub directory and get all the folders
[void](New-PSDrive -Name $target.Name -PSProvider FileSystem $target.FullName)
# Get the file objects.
Get-ChildItem "$($target.Name):\" -Recurse
}
我确信，如果我使用驱动器号创建了一些合适的持久网络驱动器，我就不会遇到这个问题.
I am sure that if I created some proper persistent network drives with a drive letter I would not have this issue.
希望我没有错过，但 Technet for New-PSDrive 不是 100% 清楚这种情况.
Hopefully I just didn't miss it but Technet for New-PSDrive was not 100% clear about this scenario.
我正在寻找一种方法来制作 ps-drive 并引用那里的文件夹，同时返回相对于新驱动器名称的路径.考虑我制作的 psdrive (G:) 的输出，然后是我映射的网络驱动器之一 (M:).
I am looking for a way to make ps-drive and reference there folders while returning paths relative to the new drive name. Consider the output from a psdrive I made (G:) then one of my mapped network drives (M:).
PS M:\> Get-ChildItem G:\
Directory: \\server01\COMMON\Folder
Mode LastWriteTime Length Name
---- ------------- ------ ----
d---- 6/18/2011 8:14 AM Folder 1
d---- 6/18/2011 8:14 AM Folder 2
PS M:\> Get-ChildItem M:\
Directory: M:\
Mode LastWriteTime Length Name
---- ------------- ------ ----
d---- 5/8/2015 11:00 AM Backup
d---- 5/8/2015 11:00 AM covers
d---- 5/8/2015 11:00 AM drop
d---- 5/8/2015 11:00 AM Expense
<小时>
我知道针对我的具体情况存在多种解决方法，但我想了解我使用 New-PSDrive 显示的行为.
推荐答案
看起来您混淆了两种不同的东西:PowerShell 路径和提供程序路径.PowerShell 路径在 PowerShell 之外不可见.
Looks like you are mixing up two different things: PowerShell path and Provider path. PowerShell paths are not visible outside of PowerShell.
New-PSDrive X FileSystem C:\Windows
(Get-Item X:\System32\notepad.exe).get_Length() #OK
([IO.FileInfo]'X:\System32\notepad.exe').get_Length() #Error
但是 Get-Item X:\System32\notepad.exe 设法创建了一个 FileInfo 对象，它代表某个文件.那么，生成的 FileInfo 对象代表什么文件?
But Get-Item X:\System32\notepad.exe managed to create a FileInfo object, which represents some file. So, what file is represented by the resulting FileInfo object?
(Get-Item X:\System32\notepad.exe).FullName
# C:\Windows\System32\notepad.exe
由于 FileInfo 对象对 PowerShell 驱动器 X: 一无所知，因此它必须存储一个路径，该路径在内部使用它可以理解的文件系统 API.您可以使用 Convert-Path cmdlet 将 PowerShell 路径转换为提供程序路径:
Since the FileInfo object knows nothing about PowerShell drive X:, it has to store a path, which internally uses the file system API which it can understand. You can use Convert-Path cmdlet to convert PowerShell path to Provider path:
Convert-Path X:\System32\notepad.exe
# C:\Windows\System32\notepad.exe
创建指向某个网络路径的 PowerShell 驱动器时也会发生同样的情况:
Same happens when you create the PowerShell drive, which point to some network path:
New-PSDrive Y FileSystem \\Computer\Share
Get-ChildItem Y:\
返回的 FileInfo 和 DirectoryInfo 对象对 Y: 一无所知，因此它们不能具有相对于该 PowerShell 驱动器的路径.内部使用的文件系统 API 不会理解它们.
Returned FileInfo and DirectoryInfo objects know nothing about Y:, so they can not have paths relative to that PowerShell drive. Internally used file system API will not understand them.
当您使用 -Persist 选项时，情况会发生变化.在这种情况下，将创建真正的映射驱动器，这可以被 PowerShell 之外的文件系统 API 理解.
Things changes when you use the -Persist option. In that case real mapped drives will be created, which can be understood by file system API outside of PowerShell.
New-PSDrive Z FileSystem \\Computer\Share -Persist|Format-Table *Root
# Root : Z:\
# DisplayRoot : \\Computer\Share
如您所见，Root 将不是您在 New-PSDrive cmdlet 中要求的 \\Computer\Share，而是 <代码>Z:\.由于 Z: 在这种情况下是一个真正的驱动器，FileInfo 和 DirectoryInfo 对象由 Get-Item 或 Get-ChildItem cmdlet 可以有相对于它的路径.
As you can see, the Root will be not \\Computer\Share as you ask in New-PSDrive cmdlet, but Z:\. Since Z: is a real drive in this case, FileInfo and DirectoryInfo objects returned by Get-Item or Get-ChildItem cmdlet can have paths relative to it.
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