For something like file not found the basic structure of the code below will work, but for this example of division by zero the exception is not caught. How does one catch a divide by zero?
import Control.Exception.Base
import Data.Array
main = toTry `catch` handler
toTry = do
print "hi"
print (show (3 `div` 0))
print "hi"
handler :: IOError -> IO ()
handler e = putStrLn "bad"