How do I clear the terminal screen in Haskell?

Question

How can I clear a terminal screen after my user has selected an option from my application's menu?

Answer 1

On Unix systems you can do System.system "clear" which just invokes the command-line utility clear. For a solution that does not depend on external tools, you'd need a library that abstracts over different terminal-types like for example ansi-terminal.

Answer 2

Under Linux (Ubuntu at least), that's the code I use for clearing the terminal:

import qualified System.Process as SP

clearScreen :: IO ()
clearScreen = do
  _ <- SP.system "reset"
  return ()