How can I find repeated letters with a Perl regex?

Question

I am looking for a regex that will find repeating letters. So any letter twice or more, for example:

booooooot or abbott

I won\'t know the

Answer 1

FYI, aside from RegExBuddy, a real handy free site for testing regular expressions is RegExr at gskinner.com. Handles ([[:alpha:]])(\1+) nicely.