Removing all ACL on folder with powershell

Question

I'm pretty new to powershell scripting (nearly 1 month since I started learning powershell.)

I'm currently working on a script with powershell 2.0 to clean folder NTFS ACL. I want to delete every acl except the administrator one.

My problem is that I can't find a way to delete every acl that are not administrator, without knowing them.

So I came here to sought for powershell pro.

Answer 1

This code remove acl :

$acl = Get-Acl \\remote_server\share_folder\HAL.9000
$acl.Access | %{$acl.RemoveAccessRule($_)}

This code add administrator acl :

#BUILTIN administrator

$acl = Get-Acl \\remote_server\share_folder\HAL.9000
$permission  = "BUILTIN\Administrators","FullControl", "ContainerInherit,ObjectInherit","None","Allow"
$accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule $permission
$acl.SetAccessRule($accessRule)
Set-Acl \\remote_server\share_folder\HAL.9000 $acl

#Domain controller administrator

$acl = Get-Acl \\remote_server\share_folder\HAL.9000
$permission  = "DOMAINCONTROLLER\Administrators","FullControl", "ContainerInherit,ObjectInherit","None","Allow"
$accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule $permission
$acl.SetAccessRule($accessRule)
Set-Acl \\remote_server\share_folder\HAL.9000 $acl

Hope this will help someone :)