PowerShell To Set Folder Permissions
File PermissionsPowershell 3.0File Permissions Problem Overview
I am trying to use the "default" options in applying folder permissions; by that, I mean that using the "Full Controll, Write, Read, etc" in the 'Properties' for a folder.
The following script works to add the user in, but it applies "Special Permissions" - not the ones with the tick boxes for the ones visible in the properties menu of the folder:
$Acl = Get-Acl "\\R9N2WRN\Share"
$Ar = New-Object System.Security.AccessControl.FileSystemAccessRule ("user","FullControl","Allow")
$Acl.SetAccessRule($Ar)
Set-Acl "\\R9N2WRN\Share" $Acl
What am I doing wrong please?
File Permissions Solutions
Solution 1 - File Permissions
Specifying inheritance in the FileSystemAccessRule()
constructor fixes this, as demonstrated by the modified code below (notice the two new constuctor parameters inserted between "FullControl"
and "Allow"
).
$Acl = Get-Acl "\\R9N2WRN\Share"
$Ar = New-Object System.Security.AccessControl.FileSystemAccessRule("user", "FullControl", "ContainerInherit,ObjectInherit", "None", "Allow")
$Acl.SetAccessRule($Ar)
Set-Acl "\\R9N2WRN\Share" $Acl
According to this topic
> "when you create a FileSystemAccessRule the way you have, the > InheritanceFlags property is set to None. In the GUI, this > corresponds to an ACE with the Apply To box set to "This Folder Only", > and that type of entry has to be viewed through the Advanced > settings."
I have tested the modification and it works, but of course credit is due to the MVP posting the answer in that topic.
Solution 2 - File Permissions
Referring to Gamaliel 's answer: $args is an array of the arguments that are passed into a script at runtime - as such cannot be used the way Gamaliel is using it. This is actually working:
$myPath = 'C:\whatever.file'
# get actual Acl entry
$myAcl = Get-Acl "$myPath"
$myAclEntry = "Domain\User","FullControl","Allow"
$myAccessRule = New-Object System.Security.AccessControl.FileSystemAccessRule($myAclEntry)
# prepare new Acl
$myAcl.SetAccessRule($myAccessRule)
$myAcl | Set-Acl "$MyPath"
# check if added entry present
Get-Acl "$myPath" | fl
Solution 3 - File Permissions
In case you had to deal with a lot of subfolders contatining subfolders and other recursive stuff. Small improvment of @Mike L'Angelo:
$mypath = "path_to_folder"
$myacl = Get-Acl $mypath
$myaclentry = "username","FullControl","Allow"
$myaccessrule = New-Object System.Security.AccessControl.FileSystemAccessRule($myaclentry)
$myacl.SetAccessRule($myaccessrule)
Get-ChildItem -Path "$mypath" -Recurse -Force | Set-Acl -AclObject $myacl -Verbose
Verbosity is optional in the last line
Solution 4 - File Permissions
Another example using PowerShell for set permissions (File / Directory) :
Verify permissions
Get-Acl "C:\file.txt" | fl *
Apply full permissions for everyone
$acl = Get-Acl "C:\file.txt"
$accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule("everyone","FullControl","Allow")
$acl.SetAccessRule($accessRule)
$acl | Set-Acl "C:\file.txt"
Hope this helps
Solution 5 - File Permissions
$path = "C:\DemoFolder"
$acl = Get-Acl $path
$username = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name
$Attribs = $username, "FullControl", "ContainerInherit,ObjectInherit", "None", "Allow"
$AccessRule = New-Object System.Security.AcessControl.FileSystemAccessRule($Attribs)
$acl.SetAccessRule($AccessRule)
$acl | Set-Acl $path
Get-ChildItem -Path "$path" -Recourse -Force | Set-Acl -aclObject $acl -Verbose