rake basics

Rake is ruby make, a make-like language in ruby. make has been used to build code in linux & unit environment.

[sourcecode language="bash"]
$ bundle exec rake db:migrate
[/sourcecode]

This execute migrate db scripts. Use bundle exec, to run the version of rake in your gem file.

[sourcecode language="bash"]
$ bundle exec rake -T db
$ bundle exec rake -T
[/sourcecode]

You can see rake commands.