read and write permission through powershell

$folder_to_change = "C:\Temp\Aspen"

$acl = Get-Acl "$folder_to_change"

$ar = New-Object System.Security.AccessControl.FileSystemAccessRule("BUILTIN\Users", @("Read", "write"), "ContainerInherit,ObjectInherit", "None", "Allow")

$acl.SetAccessRule($ar)

Set-Acl "$folder_to_change" $acl