Haskell: Get tail of the list (or) string

Return the elements from list except first element.

listUtil.hs

getTail :: [a] -> Maybe [a]
getTail [] = Nothing
getTail (x:xs) = Just xs

Prelude> :load listutil.hs
[1 of 1] Compiling Main             ( listutil.hs, interpreted )
Ok, modules loaded: Main.
*Main> 
*Main> getTail []
Nothing
*Main> getTail [1, 2, 3]
Just [2,3]
*Main> getTail [[1, 2, 3], [2, 3], [4, 5], []]
Just [[2,3],[4,5],[]]
*Main> getTail "Hare Ram"
Just "are Ram"
*Main> 

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