gem
命令手册Interact with the package manager for the Ruby programming language. More information: https://rubygems.org.
gem search {{regexp}} --all
gem install {{gemname}}
gem install {{gemname}} --version {{1.0.0}}
gem install {{gemname}} --version '~> {{1.0}}'
gem update {{gemname}}
gem list
gem uninstall {{gemname}}
gem uninstall {{gemname}} --version {{1.0.0}}