Making if and unless consistent?

I recently saw a clever Ruby idiom to return the first regex match.

A work of genius by Dennis Ranke.

Ses Marcel Molina's AWS::S3 gem.. gem install aws-s3.

This is a script for ruby.

This is a script for ruby.

This is a script for ruby.

MP4Info is a library providing read (and, someday, write) access to MP4 tags.

This is a script for ruby.

STIM is simply a web application for maintaining a to-do list.

This is a script for ruby.

This is an extensible roguelike game, written in Ruby.

I've been thinking why some Ruby constructions are inconsistent.

Get alpha channel on web, that's possible with PNG-24 images and this trick.

Find the real target of a symbolic link.