how to install gem

Proficiency in the use of RubyGemsRubyGems is a Ruby plug-in management system that allows you to easily install and manage Ruby library functions. All open source kits can be found on the rubygems. # # #常见指令 Gem-v View the version of

Upgrading Ruby GemsRuby Code Gem Update--system View the Gem versionRuby Code Gem-v View gem version, Gems installation directory, remote sources, etc.Ruby Code Gem ENV View the remote sources you have

Ruby Gem command and rubygem command I. Introduction Gem is a standard package for managing Ruby libraries and programs. It is very convenient to find, install, upgrade, and uninstall software packages through Ruby Gem (such as http://rubygems.org/)

Transferred from: http://www.jianshu.com/p/728184da1699Gem Introduction:Gem is a standard package for managing Ruby libraries and programs, and it is easy to find, install, upgrade, and uninstall packages through Ruby Gems such as

 1. Background When rails 3.0 was released, many of them worried about installing the gem, which was too slow to download the gem. This is not a slow network speed. Ruby's net: HTTP must pass through the wall and go through the sea to reach the

Ruby-v # view the ruby VERSION ruby-e '''require "watir"; puts Watir: IE: version'' # view the watir VERSION Rvm list known # list known ruby versions Rvm install 1.9.3 Rvm use 1.9.3 | rvm use system Rvm use 1.9.3 -- default Rvm list # list local

GEM-related commands use 1. Show help and version of Gem Copy Code code as follows: Gem–h/--help #显示gem的帮助 Gem–v/--version#显示gem的版本号 2. List all available software for the remote library Copy Code code as follows:

Ruby-v #查看ruby version ruby-e ' require ' watir; Puts Watir::ie::version ' #查看watir版本 RVM list Known #列出已知的ruby版本 RVM Install 1.9.3 RVM Use 1.9.3 | RVM Use System RVM Use 1.9.3--default RVM List #列出本地ruby版本 RVM Remove 1.9.2 See RVM Practical

Gem Common commands Gem-v # View version of RubyGems software gem help #显示RubyGem使用帮助 Gems help Example #列出RubyGem命令一些使用范例 gem install [gemname] # ann Install the specified gem package, the program will first find the GEM package from this

Ruby + gem common commands: ruby-e & amp; #39; & amp; #39; require & quot; watir & quot; putsWatir: IE: VERSION & amp; #39; & amp; #39; # View watir version gem-v # gem version gemupdate # Update all packages gemupdate -- s ruby + gem common