Bundler: The best way to manage a Ruby application's gems

Choose version

Primary Commands

bundle install
bundle update
bundle package
bundle exec
bundle config
bundle help

Utilities

bundle
bundle binstubs
bundle check
bundle clean
bundle console
bundle gem
bundle init
bundle inject
bundle open
bundle outdated
bundle platform
bundle show
bundle version
bundle viz
gemfile

bundle exec

Run the command in context of the bundle

$ bundle exec [--keep-file-descriptors] <command>

Options:

--keep-file-descriptors: For Ruby versions less than 2.0, keeps non-standard file descriptors on Kernel#exec

This command executes the command, making all gems specified in the Gemfile(5) available to require in Ruby programs. Essentially, if you would normally have run something like rspec spec/my_spec.rb, and you want to use the gems specified in the Gemfile and installed via bundle install, you should run bundle exec rspec spec/my_spec.rb. Note that bundle exec does not require that an executable is available on your shell's $PATH.