gem

A package manager for the Ruby programming language. More information: https://guides.rubygems.org.

gem search regular_expression --all

gem install gem_name

gem install gem_name --version 1.0.0

gem install gem_name --version '~> 1.0'

gem update gem_name

gem list

gem uninstall gem_name

gem uninstall gem_name --version 1.0.0