ruby script/console --sandbox

Loading development environment in sandbox (Rails 2.2.2)
Any modifications you make will be rolled back on exit

Command-Line-Fu

Command-Line-Fu is the place to record those command-line gems that you return to again and again.

Delete that bloated text file you've been using: you can use this site to create your own personal repository of useful commands. That way others can gain from your CLI widsom and your from theirs too. All commands can be commented on and discussed - voting is also permitted so the best float to the top.

http://www.commandlinefu.com/