How do I handle non-ASCII characters in I / O?

Question

As the name says, I have a problem with characters outside of ASCII (for example, "á", "ã", etc.) in I / O operations. See an example (Unix environment):

import System.Cmd system "ls aaaá" 

Returning the ls command code error:

 (...)ls: can't access "aaa " : no such file or directory(...) 

How can i fix this?

Answer 1

Based on a hammar comment, I installed GHC v7.2.2 (my old version was v6.9.9) and the error was fixed.

Answer 2

• Check your system language
• Check Haskell source encoding

If both are UTF8, it should work.