苦労の末に Prelude System.Directory> getDirectoryContents "/" >>= return.concatMap (++" ") >>= putStrLn bin lib sbin sys selinux vmlinuz . root boot usr srv cdrom vmlinuz.old initrd.img var tmp dev media opt proc mnt initrd.img.old home lo…

haskellでカレントディレクトリを表示する Prelude> :m +System.Directory Prelude System.Directory> setCurrentDirectory "/etc" "/etc" Prelude System.Directory> putStrLn getCurrentDirectory <interactive>:1:9: Couldn't match expected type `String' against in</interactive>…