I've got a column file like this:
1 1 1 AKSDFJADFKASDJFAK
2 1 1 ADKLCJASDLKCJDLACKADCJLKDACJADS
3 1 2 AKLJDFHALKDJFHLKJSDKSDFHAKJFDHAKFHJAKFJ
And I would like to sort the entries by the fourth column, with the longest word first. Any suggestions?