Question

To help me learn Haskell, I want to write a script for automatically downloading the latest chromium mini_installer.exe every two days and installing it. Any suggestions? I’m using Windows 7.

Answer 1

You can use one of the URL fetching libraries. An example is download-curl.

Then it is as simple as:

import qualified Data.ByteString as B
import Network.Curl.Download

main = do
   bs <- openURI "http://example.com/example.txt"
   case bs of
      Left err -> error err
      Right d  -> B.writeFile "mydata" d

To implement “cron”-like behavior of sleeping for 2 days, you can either use your operating system services, or implement a sleeping mechanism.