--- /dev/null
+import Directory (getDirectoryContents)
+import List (sort, isPrefixOf, isSuffixOf)
+
+main = do
+ names <- getDirectoryContents "."
+ putStrLn (unlines (sort (filter ok names)))
+
+ok name = "getDirContents" `isPrefixOf` name
+ && not ("bak" `isSuffixOf` name)
+ && not ("prof" `isSuffixOf` name)
+ && not ("hp" `isSuffixOf` name)
+ && not ("ps" `isSuffixOf` name)
+ && not ("aux" `isSuffixOf` name)