owner-psm1

function Get-Owner {
    [CmdletBinding()]
    PARAM(
        [Parameter(Mandatory = $false, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
        [ValidateScript({
                $Item = $_ | Get-Item
            (Test-Path -Path $Item) -eq $true -and $Item.GetType().FullName -in @('System.IO.FileInfo', 'System.IO.DirectoryInfo')
            })]
        $Path
    )

    $Acl = Get-Acl -Path $Path
    [System.Security.Principal.NTAccount]($Acl.Owner)
}

function Set-Owner {
    [CmdletBinding()]
    PARAM(
        [Parameter(Mandatory = $false, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
        [ValidateScript({
            $Item = $_ | Get-Item
            (Test-Path -Path $Item) -eq $true -and $Item.GetType().FullName -in @('System.IO.FileInfo', 'System.IO.DirectoryInfo')
        })]
        $Path
        ,
        [System.Security.Principal.NTAccount]
        $NewOwner
    )

    $NTAccount_Owner_New = [System.Security.Principal.NTAccount]$NewOwner
    Write-Verbose "NTAccount_Owner_New: $($NTAccount_Owner_New)"
    $Acl = Get-Acl -Path $Path
    $NTAccount_Owner_Current = [System.Security.Principal.NTAccount]($Acl.Owner)
    Write-Verbose "NTAccount_Owner_Current: $($NTAccount_Owner_Current)"
    $AlreadySet = $NTAccount_Owner_Current -eq $NTAccount_Owner_New
    Write-Verbose "AlreadySet: $($AlreadySet)"
    if (-not $AlreadySet) {
        $Acl.SetOwner($NTAccount_Owner_New)
        Set-Acl -Path $Item.FullName -AclObject $Acl
    }
}