Spell Check a File
$ cat applebad.txt core werm sede juwel $ spell < applebad.txt werm sede juwel $ cat apple.txt core worm seed jewel $ spell < apple.txt $
$ cat applebad.txt core werm sede juwel $ spell < applebad.txt werm sede juwel $ cat apple.txt core worm seed jewel $ spell < apple.txt $