# bundle > Dependency manager for the Ruby programming language. > More information: . - Install all gems defined in the `Gemfile` expected in the working directory: `bundle install` - Update all gems by the rules defined in the `Gemfile` and regenerate `Gemfile.lock`: `bundle update` - Update one specific gem defined in the `Gemfile`: `bundle update --source {{gemname}}` - Create a new gem skeleton: `bundle gem {{gemname}}`