Home / server / Questions / 35300
Accepted
user10711
Asked: 2009-07-03 13:11:12 +0800 CST

Recursively changing permissions with Powershell

  • 772

I am trying to write a script in Powershell, that will find folders recursively and based on the folder name replace the ACL on the folder.

I have folders already with the correct permissions. These I use as template folders.

Folder1
Folder2
 - Subfolder1
 - Subfolder2

There are literally thousands of folders, all with the same names, and I would like to apply the same set of permissions to all of the like named folders. I have worked on tackling this a few different ways but I haven't found a good way to handle the sub-folders and recursion.

Here is a sample of the first way I tried to tackle this.

$Prop = Get-Acl "Template\Subfolder1"
$Engd = Get-Acl "Template\Subfolder2"

foreach ($file in $(Get-ChildItem Folder2 -recurse)) {
  If ($_ = "Subfolder1") {
    set-acl $_ $Prop
    }
  If ($_ = "Subfolder2") {
    set-acl $_ $Engd
    }
}

The further I get along with trying to write this the more I realize its going to be harder and harder. I have hundreds of folders named similar to Folder2 Folder3..... FolderN, all with the same folder structure and folder names inside. I just want something simple that will match a folder name and based on the name assign a certain predefined ACL.

powershell permissions access-control-list

1 Answers

  1. Best Answer

    Untested but how about something like this:

    $acls = @{};
Get-ChildItem Template |
    Where-Object { $_.PSIsContainer } |
    ForEach-Object {
        $acls[$_.Name] = Get-Acl $_.FullName ;
    }

Get-ChildItem Folder2 -Recurse |
    Where-Object { $_.PSIsContainer -and $acls.ContainsKey($_.Name) } |
    ForEach-Object {
        Set-Acl $_.FullName $acls[$_.Name] ;
    }
    • 2