Welcome. You've reached the central repository for cheat, the RubyGem which puts Ruby-centric cheat sheets right into your terminal. The inaugural blog entry is here.
$ gem install cheat
$ cheat strftime
A magnificent cheat sheet for Ruby's strftime method will be printed to your terminal.
To get some help on cheat itself:
$ cheat cheat
To access a cheat sheet, simply pass the program the desired sheet's name:
$ cheat [sheet name]