Ubuntu系统安装Ruby的三种方法
<p>Ruby是一个开源的动态编程语言，它有优美的语法，可用于构建可伸缩的Web应用程序。ruby gems可以很好地增强Ruby开发者的开发效率。</p>
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要在Ubuntu系统上安装Ruby，有几种方法，每种方法都只需几步就能搞定。</p>
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<strong>方法一：使用apt-get安装</strong></p>
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可以直接使用两个命令完成Ruby的安装。</p>
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<code class="bash comments"># sudo apt-get update</code>
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<code class="bash comments"># sudo apt-get install ruby</code>
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或者</p>
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<code class="bash comments"># sudo apt-get install ruby2.0</code>
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<strong>方法二：使用brightbox ppa仓库安装</strong></p>
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<code class="bash comments"># sudo apt-get install Python-software-properties</code>
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<code class="bash comments"># sudo apt-add-repository ppa:brightbox/ruby-ng</code>
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<code class="bash comments"># sudo apt-get update</code>
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<code class="bash comments"># sudo apt-get install ruby2.1 ruby2.1-dev</code>
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<strong>方法三：使用RVM安装</strong></p>
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RVM是Ruby的版本管理器工具。<br>
1、安装RVM</p>
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<code class="bash comments"># sudo apt-get curl</code>
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<code class="bash comments"># curl -L https://get.rvm.io | bash -s stable</code>
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<code class="bash comments"># source ~/.rvm/scripts/rvm</code>
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2、安装RVM的环境依赖</p>
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<code class="bash comments"># rvm requirements</code>
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3、安装Ruby</p>
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<code class="bash comments"># rvm install ruby</code>
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如果想在Ubuntu上安装多个Ruby版本，那么可以使用下面的命令来指定使用rvm作为默认的Ruby版本管理。</p>
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<code class="bash comments"># rvm use ruby --default</code>
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检查当前成功安装的Ruby版本</p>
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<code class="bash comments"># ruby -v</code>
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安装gems</p>
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<code class="bash comments"># gem list</code>
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<code class="bash comments"># gem install </code>
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比如gem-name可以写sass</p>
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如果要从本地安装gems，命令如下：</p>
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<code class="bash comments"># gem install --local </code>
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可以使用命令更新已安装的gems，命令如下：</p>
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<code class="bash comments"># gem update --system</code>
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或者</p>
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<code class="bash comments"># gem update</code>
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原文链接：http://blog.csdn.net/chszs/article/details/42462517</p>
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。</p>
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