$ bundle install [--binstubs=PATH] [--clean] [--deployment] [--frozen]
                 [--full-index] [--gemfile=FILE] [--local] [--no-cache]
                 [--no-prune] [--path=PATH] [--quiet] [--shebang=STRING]
                 [--standalone[=GROUP [GROUP...]] [--system]
                 [--without=GROUP[ GROUP...]] [--retry=NUMBER]
                 [--trust-policy=SECURITYLEVEL]

Options:

--binstubs: Generate bin stubs for bundled gems to ./bin

--clean: Run bundle clean automatically after install

--deployment: Install using defaults tuned for deployment and CI environments

--frozen: Do not allow the Gemfile.lock to be updated after this install

--full-index: Use the rubygems modern index instead of the API endpoint

--gemfile: Use the specified gemfile instead of Gemfile

--jobs: Install gems using parallel workers.

--local: Do not attempt to fetch gems remotely and use the gem cache instead

--no-cache: Don't update the existing gem cache.

--no-prune: Don't remove stale gems from the cache.

--path: Specify a different path than the system default ($BUNDLE_PATH or $GEM_HOME). Bundler will remember this value for future installs on this machine

--quiet: Only output warnings and errors.

--retry: Retry network and git requests that have failed.

--shebang: Specify a different shebang executable name than the default (usually 'ruby')

--standalone: Make a bundle that can work without the Bundler runtime

--system: Install to the system location ($BUNDLE_PATH or $GEM_HOME) even if the bundle was previously installed somewhere else for this application

--trust-policy: Sets level of security when dealing with signed gems. Accepts `LowSecurity`, `MediumSecurity` and `HighSecurity` as values.

--without: Exclude gems that are part of the specified named group.

Gems will be installed to your default system location for gems. If your system gems are stored in a root-owned location (such as in Mac OSX), bundle will ask for your root password to install them there.

While installing gems, Bundler will check vendor/cache and then your system's gems. If a gem isn't cached or installed, Bundler will try to install it from the sources you have declared in your Gemfile.

The --system option is the default. Pass it to switch back after using the --path option as described below.

$ bundle install --deployment

The --deployment flag activates a number of deployment- and CI-friendly conventions:

• Isolate all gems into vendor/bundle (equivalent to --path vendor/bundle)
• Require an up-to-date Gemfile.lock (equivalent to --frozen)
• Disable ANSI color output
• If bundle package was run, do not fetch gems from rubygems.org. Instead, only use gems in the checked in vendor/cache