gistfile1.txt

orb ➜  ~  cat test5.hs
main = print $ heead  [1..10]
orb ➜  ~  ghci test5.hs
GHCi, version 7.8.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
[1 of 1] Compiling Main             ( test5.hs, interpreted )

test5.hs:1:16:
    Not in scope: ‘heead’
    Perhaps you meant ‘head’ (imported from Prelude)
Failed, modules loaded: none.
Prelude>