How to use Spark scala custom UDF in spark sql CLI or beeline client

[pooja mehta]

Hi,

How to Use Spark scala custom UDF in spark sql CLI or Beeline client.
with sqlContext we can register a UDF like this:
 sqlContext.udf.register("sample_fn", sample_fn _ )
What is the way to use UDF in Spark sql CLI or beeline client.

Thanks
Pooja