What is the easiest way to get total number for lines of code (LOC) in SQL Server?

$conn = new-object System.Data.SqlClient.SqlConnection("Server=server;Database=database;Integrated Security=SSPI")
$cmd = new-object System.Data.SqlClient.SqlCommand("select text from syscomments", $conn)
$conn.Open()
$reader = $cmd.ExecuteReader()

$reader.Read() | out-null
$reader.GetString(0) | clip
$reader.Close()
$conn.Close()