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release_bl_iot_sdk_1.6.39-238-gf5ba0a7ee
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<div class="section" id="cli">
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<h1>cli<a class="headerlink" href="#cli" title="永久链接至标题"></a></h1>
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<div class="section" id="id1">
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<h2>概述<a class="headerlink" href="#id1" title="永久链接至标题"></a></h2>
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<p>linux下有强大的shell工具，可以让用户和片上系统进行交互，而在传统的单片机系统中，用户往往需要自行实现一套类似的交互工具。AliOS-Things原生带有一套名为cli（command-line
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interface）的命令行交互工具，在提供基本的系统交互命令的基础上，也支持用户自定义命令。我们已经将其移植到我们到系统中，
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同时对其做出了很多完善， 下面将介绍如何使用cli命令并执行</p>
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<div class="section" id="id2">
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<h2>示例代码<a class="headerlink" href="#id2" title="永久链接至标题"></a></h2>
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<p>用户在只需在程序中调用<code class="docutils literal notranslate"><span class="pre">test_cli_init()</span></code>接口之后，就可以在shell中<code class="docutils literal notranslate"><span class="pre">test</span></code>,就可以打印<code class="docutils literal notranslate"><span class="pre">hello</span> <span class="pre">world.</span></code>如下图所示</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1">#</span>
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<span class="c1">#</span>
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<span class="c1"># test</span>
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<span class="n">hello</span> <span class="n">world</span><span class="o">.</span>
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<span class="c1">#</span>
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<span class="c1">#</span>
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</pre></div>
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</div>
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<p>还有很多常用命令，请参考<a href="#id3"><span class="problematic" id="id4">`常用命令<../helper/helper.html>`_</span></a></p>
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<div class="code c highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">static</span> <span class="n">void</span> <span class="n">cmd_test_func</span><span class="p">(</span><span class="n">char</span> <span class="o">*</span><span class="n">buf</span><span class="p">,</span> <span class="nb">int</span> <span class="nb">len</span><span class="p">,</span> <span class="nb">int</span> <span class="n">argc</span><span class="p">,</span> <span class="n">char</span> <span class="o">**</span><span class="n">argv</span><span class="p">)</span>
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<span class="p">{</span>
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<span class="n">printf</span><span class="p">(</span><span class="s2">"hello world.</span><span class="se">\r\n</span><span class="s2">"</span><span class="p">);</span>
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<span class="k">return</span><span class="p">;</span>
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<span class="p">}</span>
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<span class="n">const</span> <span class="n">static</span> <span class="n">struct</span> <span class="n">cli_command</span> <span class="n">cmds_user</span><span class="p">[]</span> <span class="o">=</span> <span class="p">{</span>
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<span class="p">{</span><span class="s2">"test"</span><span class="p">,</span> <span class="s2">"it's test func "</span><span class="p">,</span> <span class="n">cmd_test_func</span><span class="p">}</span>
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<span class="p">};</span>
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<span class="nb">int</span> <span class="n">test_cli_init</span><span class="p">(</span><span class="n">void</span><span class="p">)</span>
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<span class="p">{</span>
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<span class="k">return</span> <span class="n">aos_cli_register_commands</span><span class="p">(</span><span class="n">cmds_user</span><span class="p">,</span> <span class="n">sizeof</span><span class="p">(</span><span class="n">cmds_user</span><span class="p">)</span><span class="o">/</span><span class="n">sizeof</span><span class="p">(</span><span class="n">cmds_user</span><span class="p">[</span><span class="mi">0</span><span class="p">]));</span>
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<span class="p">}</span>
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</pre></div>
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