param ($sAMAccountName = $(Throw "$SAMAccountNAME is required!"))
Begin
{
    # AddRemove-AccessRule.MSH 
    # Add or remove simple access rule to a file/directory
    # using text parameters
    #
    # Original written by /\/\o\/\/ 2006 
    # http://mow001.blogspot.com
    #
    # modified by tony 2006
    # http://mshforfun.blogspot.com
    #
    # Stolen by Glenn 2008!
    #
    #Usage AddRemove-Acl FileOrDirectory (Action) user Rights (Access)
    # Action: Add / Remove
    # Rights: ListDirectory / ReadData / WriteData / CreateFiles /
    # CreateDirectories / AppendData / ReadExtendedAttributes /
    # WriteExtendedAttributes / Traverse / ExecuteFile /
    # DeleteSubdirectoriesAndFiles / ReadAttributes / WriteAttributes/ Write /
    # Delete / ReadPermissions / Read / ReadAndExecute / Modify /
    # ChangePermissions / TakeOwnership / Synchronize / FullControl
    # Access: Allow / Deny
    
    function Modify-ACL
    {
        param (
        $FileDir,
        $User,
        [System.Security.AccessControl.FileSystemRights] $Rights = "Modify",
        [System.Security.AccessControl.AccessControlType] $Access = "Allow"
        )
            
        trap{break}
        
        # get the current acl
        $AccessControl = get-acl $FileDir
        
        # create a new access control entry
        $AccessRule = new-object System.Security.AccessControl.FileSystemAccessRule($User,$Rights,$Access)
        
        # check if given user is Valid, this will break function if not so.
        $Sid = $AccessRule.IdentityReference.Translate([System.Security.Principal.securityidentifier]) 
        
        # Add that New AC to the current ACL
        $AccessControl.AddAccessRule($AccessRule)
    
        # Overwrite the ACL with the new one we just made
        set-acl -aclobject $AccessControl -path $FileDir
    }
}
Process
{
    #  Match the first Character of the sAMAccountName using a regular expression.
    switch -regex ($sAMAccountName)
    {
        "^[a-f]" 
        {
            New-Item "\\server1\privlun01$\home\"$sAMAccountName -ItemType Directory
            Modify-ACL -FileDir "\\server1\privlun01$\home\"$sAMAccountName -User $sAMAccountName 
        }

        "^[g-l]" 
        {
            New-Item "\\server1\privlun02$\home\"$sAMAccountName -ItemType Directory
            Modify-ACL -FileDir "\\server1\privlun02$\home\"$sAMAccountName -User $sAMAccountName
        }

        "^[m-s]" 
        {
            New-Item "\\server1\privlun03$\home\"$sAMAccountName -ItemType Directory
            Modify-ACL -FileDir "\\server1\privlun03$\home\"$sAMAccountName -User $sAMAccountName
                    
        }

        "^[t-z]" 
        {
            New-Item "\\server1\privlun04$\home\"$sAMAccountName -ItemType Directory
            Modify-ACL -FileDir "\\server1\privlun04$\home\"$sAMAccountName -User $sAMAccountName 
            Modify-ACL -FileDir "\\server1\privlun04$\home\"$sAMAccountName -User "BUILTIN\Administrator" -$Rights "FullControl"
        }

    }

}