anchor.diff:  
   ## <a id='precedence'></a>Precedence between Manifests, Command-line Options, and Leftover Values ##
   
  -You can set application attributes using either a manifest or `cf push` command-line options. If not set in either of these ways, attributes are set to reasonable values when you push an application for the first time. On subsequent pushes, you can use either command-line options, manifests, both, or neither. Values that are untouched by command-line options or manifests persist from push to push—we can call these leftover values.
  -
  -Whenever you push an application, `cf` applies rules of precedence when determining which attributes are set by command-line attributes, which by manifest, and which by leftover values:
  -
  -* Manifests override leftover values
  -* Command-line options override manifests
  +You can set application attributes using either a manifest or `cf push` command-line options. When you push an application for the first time, `cf` sets its attributes to reasonable values if you have not set them with command-line options or a manifest. On subsequent pushes, you can use either command-line options, manifests, both, or neither. Values that are untouched by command-line options or manifests persist from push to push; you can think of these as leftover values.
  +
  +Whenever you push an application, `cf` applies rules of precedence to determine which attributes are set by command-line attributes, which by manifest, and which by leftover values:
  +
  +* Manifests override leftover values.
  +* Command-line options override manifests.
   
   Think of manifests as just another input to `cf push`, to be combined with command-line options and leftover values.
   
  
positive.code: command: bundle exec rake VERBOSE=true
  ~~~
  
  ### <a id='domain'></a>The domain attribute ###
  
  Applications are always pushed to a particular Cloud Foundry instance, and each Cloud Foundry instance has a default domain.
  
  When the domain line is omitted, `cf` assigns your application to the default domain. Use the domain line when you want your application to be served from a domain other than the default.
  
  ~~~
  domain: unique9876.example.com
  ~~~
  
  ### <a id='env-block'></a>Environment variables ###
  
  The `env` block consists of a heading, then one or more environment variable/value pairs. An application is deployed to a container on the server. The variables belong to the environment of the container.
  
  For example:
  
  
negative.code:   RACK_ENV: ${rails-env}
  ~~~
  
  `cf push` deploys the application to a container on the server. The variables belong to the container environment.
  
  While the application is running, `cf` allows you to operate on environment variables.
  
  * View all variables:
  