Create new bundle using commands:

Run the following command to create new bundle:

# php app/console generate:bundle

Following are some options which need to fill after running the above command:

Welcome to the Symfony bundle generator!                                

- Are you planning on sharing this bundle across multiple applications? [no]: yes

- Bundle namespace: BundleName(provide bundle name)

- Target Directory [src/]: leave blank  for default

- What format do you want to use for your generated configuration?
  Configuration format (annotation, yml, xml, php) [xml]: yml

Following are the structure of bundle folder and files to change:

Bundle location: symfony/src/App/BundleName

Bundle is created with all the basic files and entries. You can change the bundle files as per your requirement.