--system [VERSION] | Update the RubyGems system software |
--platform <PLATFORM> | Update the RubyGems system software |
--prerelease | Allow prerelease versions of a gem as update targets |
--install-dir, -i <DIR> | Gem repository directory to get installed gems |
--bindir, -n <DIR> | Directory where executables will be placed when the gem is installed |
--document <TYPES> | Generate documentation for installed gems |
--build-root <DIR> | Temporary installation root. Useful for building packages. Do not use this when installing remote gems |
--vendor | Install gem into the vendor directory. Only for use by gem repackagers |
--no-document, -N | Disable documentation generation |
--env-shebang, -E | Rewrite the shebang line on installed scripts to use /usr/bin/env |
--force, -f | Force gem to install, bypassing dependency checks |
--wrappers, -w | Use bin wrappers for executables. Not available on dosish platforms |
--trust-policy, -P <POLICY> | Specify gem trust policy |
--ignore-dependencies | Do not install any required dependent gems |
--format-executable | Make installed executable names match Ruby |
--user-install | Install in user's home directory instead of GEM_HOME |
--development | Install additional development dependencies |
--development-all | Install development dependencies for all gems (including dev deps themselves) |
--conservative | Don't attempt to upgrade gems already meeting version requirement |
--minimal-deps | Don't upgrade any dependencies that already meet version requirements |
--post-install-message | Print post install message |
--file, -g <FILE> | Read from a gem dependencies API file and install the listed gems |
--without <GROUPS> | Omit the named groups (comma separated) when installing from a gem dependencies file |
--default | Add the gem's full specification to specifications/default and extract only its bin |
--explain | Rather than install the gems, indicate which would be installed |
--lock | Create a lock file (when used with -g/--file) |
--suggestions | Suggest alternates when gems are not found |