[Redis](http://code.google.com/p/redis/) and [redis-rb](github.com/ezmobius/redis-rb) example:
```ruby
git clone git://github.com/ezmobius/redis-rb.git
cd redis-rb/
rake redis:install
rake dtach:install
rake redis:start &
rake install
cat <>test.rb
require 'rubygems'
require 'redis'
r = Redis.new
r.delete('foo')
p'set foo to "bar"'
r['foo'] = 'bar'
p 'value of foo'
p r['foo']
EOF
ruby test.rb
```
If Redis is not started Ruby will exit at Redis.new for some reason without saying anything.