ror on ubuntu10 -- autotest

Install Autotest:

[sudo] gem install autotest -v 4.4.6
[sudo] gem install autotest-rails-pure -v 4.1.2

TimeStamp Plugin:

[sudo] gem install timestamp

# add the following line to ~/.autotest
require 'autotest/timestamp'

Run Autotest in your project folder:
Autotest will not stop until you Ctrl-C twice, monitoring your file changes and execute the tests continually.
Timestamp plugin will display the waiting time for you

autotest

Notes
We don't need redgreen plugin here, since new version of Autotest has already had that feature.