如何使用PowerShell為多個子目錄創建目錄連接？

Question

有很多子文件夾，只能為二階子文件夾創建目錄連接。

當前文件夾結構的某些部分如下所示

C:\MainFolder>tree
Folder PATH listing for volume C System
C:.
├───1stSub-FolderA
│   ├───2ndSub-FolderA
│   └───2ndSub-FolderB
└───1stSub-FolderB
    ├───2ndSub-FolderA
    └───2ndSub-FolderB

D:\MainFolder-Copy>tree
Folder PATH listing for volume Dosya
D:.
├───1stSub-FolderA
└───1stSub-FolderB

每個文件夾的手動編碼：

C:\>mklink /j D:\MainFolder-Copy\1stSub-FolderA\2ndSub-FolderA C:\MainFolder\1stSub-FolderA\2ndSub-FolderA
Junction created for D:\MainFolder-Copy\1stSub-FolderA\2ndSub-FolderA <<===>> C:\MainFolder\1stSub-FolderA\2ndSub-FolderA

C:\>mklink /j D:\MainFolder-Copy\1stSub-FolderA\2ndSub-FolderB C:\MainFolder\1stSub-FolderA\2ndSub-FolderB
Junction created for D:\MainFolder-Copy\1stSub-FolderA\2ndSub-FolderB <<===>> C:\MainFolder\1stSub-FolderA\2ndSub-FolderB

C:\>mklink /j D:\MainFolder-Copy\1stSub-FolderB\2ndSub-FolderA C:\MainFolder\1stSub-FolderB\2ndSub-FolderA
Junction created for D:\MainFolder-Copy\1stSub-FolderB\2ndSub-FolderA <<===>> C:\MainFolder\1stSub-FolderB\2ndSub-FolderA

C:\>mklink /j D:\MainFolder-Copy\1stSub-FolderB\2ndSub-FolderB C:\MainFolder\1stSub-FolderB\2ndSub-FolderB
Junction created for D:\MainFolder-Copy\1stSub-FolderB\2ndSub-FolderB <<===>> C:\MainFolder\1stSub-FolderB\2ndSub-FolderB

結果：

C:\MainFolder>tree
Folder PATH listing for volume C System
C:.
├───1stSub-FolderA
│   ├───2ndSub-FolderA
│   └───2ndSub-FolderB
└───1stSub-FolderB
    ├───2ndSub-FolderA
    └───2ndSub-FolderB

D:\MainFolder-Copy>tree
Folder PATH listing for volume Dosya
D:.
├───1stSub-FolderA
│   ├───2ndSub-FolderA
│   └───2ndSub-FolderB
└───1stSub-FolderB
    ├───2ndSub-FolderA
    └───2ndSub-FolderB

如何使用幾個命令為所有只有二階子文件夾而不是為每個文件夾手動編寫代碼？ 命令不應為第1，第3，第4，第5 ...訂單子文件夾創建目錄連接。

Answer 1

嘗試這個：

Get-ChildItem D:\MainFolder-Copy -Directory |
    Foreach {Get-ChildItem (Join-Path C:\MainFolder $_.Name) -Directory} | 
    Foreach {cmd /c mklink /j ($_.FullName -replace 'C:\\MainFolder','D:\MainFolder-Copy') $_.FullName}