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‎atom.xml

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‎categories/Linux/index.html

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<meta name="description" content="A journey of a thousand miles begins with single step">
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<meta property="og:type" content="website">
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<meta property="og:title" content="javasgl">
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<meta property="og:url" content="https://javasgl.github.io/categories/linux/index.html">
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<meta property="og:url" content="https://javasgl.github.io/categories/Linux/index.html">
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<meta property="og:site_name" content="javasgl">
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<meta property="og:description" content="A journey of a thousand miles begins with single step">
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<meta property="og:locale" content="en">
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<link rel="canonical" href="https://javasgl.github.io/categories/linux/"/>
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<link rel="canonical" href="https://javasgl.github.io/categories/Linux/"/>
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<title> Category: linux | javasgl </title>
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<title> Category: Linux | javasgl </title>
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</head>
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<body itemscope itemtype="http://schema.org/WebPage" lang="en">
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<section id="posts" class="posts-collapse">
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<div class="collection-title">
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<h2 >
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linux
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Linux
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<small>Category</small>
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</h2>
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</div>
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<a class="post-title-link" href="/codis-dashboard/" itemprop="url">
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<a class="post-title-link" href="/linux-sort/" itemprop="url">
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<span itemprop="name">codis dashboard 无法启动处理流程</span>
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<span itemprop="name">Linux sort 命令使用</span>
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datetime="2017-08-31T15:03:20+08:00"
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content="2017-08-31" >
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datetime="2017-08-21T11:18:53+08:00"
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content="2017-08-21" >
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</time>
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<header class="post-header">
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<a class="post-title-link" href="/umount-device-when-its-buzy/" itemprop="url">
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<span itemprop="name">Linux强制卸载设备</span>
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</a>
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</h1>
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<div class="post-meta">
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<time class="post-time" itemprop="dateCreated"
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datetime="2017-05-12T11:04:07+08:00"
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content="2017-05-12" >
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</time>
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<a class="post-title-link" href="/shell-change-path/" itemprop="url">
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<span itemprop="name">shell脚本修改环境变量</span>
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</a>
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</h1>
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datetime="2017-04-28T12:04:50+08:00"
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content="2017-04-28" >
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<a class="post-title-link" href="/Linux-zgrep/" itemprop="url">
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<span itemprop="name">Linux zgrep使用笔记</span>
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</a>
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datetime="2017-03-17T17:20:05+08:00"
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content="2017-03-17" >
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<a class="post-title-link" href="/Linux-iptables/" itemprop="url">
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<span itemprop="name">iptables使用笔记</span>
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</a>
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</h1>
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datetime="2017-03-17T15:07:10+08:00"
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content="2017-03-17" >
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</time>
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</div>
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</body>
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</html>
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for(var i = 0; i < entries.length; i++) {
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var url = entries[i];
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var element = document.getElementById(url);
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var countSpan = $(element).find(COUNT_CONTAINER_REF);
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if( countSpan.text() == '') {
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countSpan.text(0);
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}
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}
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})
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.fail(function (object, error) {
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console.log("Error: " + error.code + " " + error.message);
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});
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}
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function addCount(Counter) {
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var $visitors = $(".leancloud_visitors");
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var url = $visitors.attr('id').trim();
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var title = $visitors.attr('data-flag-title').trim();
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var query = new AV.Query(Counter);
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query.equalTo("url", url);
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query.find({
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success: function(results) {
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if (results.length > 0) {
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var counter = results[0];
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counter.fetchWhenSave(true);
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counter.increment("time");
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counter.save(null, {
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success: function(counter) {
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var $element = $(document.getElementById(url));
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$element.find('.leancloud-visitors-count').text(counter.get('time'));
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},
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error: function(counter, error) {
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console.log('Failed to save Visitor num, with error message: ' + error.message);
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}
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});
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} else {
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var newcounter = new Counter();
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/* Set ACL */
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var acl = new AV.ACL();
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acl.setPublicReadAccess(true);
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acl.setPublicWriteAccess(true);
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newcounter.setACL(acl);
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/* End Set ACL */
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newcounter.set("title", title);
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newcounter.set("url", url);
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newcounter.save(null, {
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$element.find('.leancloud-visitors-count').text(newcounter.get('time'));
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},
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error: function(newcounter, error) {
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console.log('Failed to create');
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}
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});
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‎content.json

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‎css/main.css

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width: 4px;
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height: 4px;
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border-radius: 50%;
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background: #f75c4d;
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background: #7dc89e;
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}
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.links-of-blogroll {
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font-size: 13px;

‎elasticsearch-function-doc/index.html

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@@ -412,9 +412,9 @@ <h2 id="范例文档"><a href="#范例文档" class="headerlink" title="范例
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<h2 id="doc"><a href="#doc" class="headerlink" title="doc"></a>doc</h2><p>doc 可以很方便的使用文档中的字段，通过 doc[‘field_name’]来访问,访问速度比较快，因为相关的值已经加载到内存中了。<br>但是它有一些使用限制: 访问的字段不能是 object 类型;只对 not-analyzed 字段有效</p>
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<p>例如：对于上述的文档，doc[“skus”] 是无效的:<br><figure class="highlight haxe"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="type"></span>"<span class="keyword">for</span>(sku <span class="keyword">in</span> doc[<span class="string">'skus'</span>])&#123;<span class="keyword">if</span>(sku.price&gt;<span class="number">5</span>)&#123;<span class="keyword">return</span> <span class="literal">true</span>;&#125;&#125;;<span class="keyword">return</span> <span class="literal">false</span>;<span class="string">" //No field found for [skus] in mapping!</span></span><br></pre></td></tr></table></figure></p>
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<p>而 doc[“categories”] 和 doc[“price”] 这是可以的:<br><figure class="highlight scilab"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="string">"for(category in doc['</span>categories'])&#123;<span class="keyword">if</span>(category&gt;<span class="number">2</span>)&#123;<span class="keyword">return</span> true;&#125;&#125;;<span class="keyword">return</span> false;<span class="string">"</span></span><br><span class="line"><span class="string">"</span>script<span class="string">": "</span>doc[<span class="string">'price'</span>])&gt;<span class="number">100</span><span class="string">"</span></span><br></pre></td></tr></table></figure></p>
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<p>doc[“name”] 无效是因为 name 为 analyzed 的字段:<br><figure class="highlight 1c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="string">"doc['name'].value.length()&gt;=10"</span> <span class="comment">//not found</span></span><br></pre></td></tr></table></figure></p>
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<p>虽然访问 doc[‘name’]无效，但是并不报错，其实对于这种分词的字段，访问 doc[‘name’] 其实访问的是分词过后的 token,所以不会报 no field found for [name] in mapping 错误。<br>doc[‘name2’]有效，因为 name2 字段 是 not_analyzed 的(可以理解为不分词):<br><figure class="highlight 1c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="string">"doc['name2'].value.length()&gt;=10"</span> <span class="comment">//found</span></span><br></pre></td></tr></table></figure></p>
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<h2 id="fields"><a href="#fields" class="headerlink" title="_fields"></a>_fields</h2><p>_fields 使用方式同 doc 一样的，不过需要注意的是 _fields 必须是 mapping 中 store 的字段，例如 price 字段：<br><figure class="highlight 1c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="string">"_fields['price'].value&lt;=param1"</span>,</span><br></pre></td></tr></table></figure></p>
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<p>doc[“name”] 无效是因为 name 为 analyzed 的字段:<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="string">"doc['name'].value.length()&gt;=10"</span> <span class="comment">//not found</span></span><br></pre></td></tr></table></figure></p>
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<p>虽然访问 doc[‘name’]无效，但是并不报错，其实对于这种分词的字段，访问 doc[‘name’] 其实访问的是分词过后的 token,所以不会报 no field found for [name] in mapping 错误。<br>doc[‘name2’]有效，因为 name2 字段 是 not_analyzed 的(可以理解为不分词):<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="string">"doc['name2'].value.length()&gt;=10"</span> <span class="comment">//found</span></span><br></pre></td></tr></table></figure></p>
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<h2 id="fields"><a href="#fields" class="headerlink" title="_fields"></a>_fields</h2><p>_fields 使用方式同 doc 一样的，不过需要注意的是 _fields 必须是 mapping 中 store 的字段，例如 price 字段：<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="string">"_fields['price'].value&lt;=param1"</span>,</span><br></pre></td></tr></table></figure></p>
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<p>同时性能会低于加到内存中的doc。<br>默认情况下，创建 mapping 时候如果没有指定 store为 true 则 相应的字段是没有 stored 的。</p>
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<h2 id="source"><a href="#source" class="headerlink" title="_source"></a>_source</h2><p>如果创建 mapping 的时候没有禁用 source , 则在脚本中可以使用 _source 来访问文档内容。_source的内容实质上就是一段 json。所以可以通说 _source.obj2.obj1.field3 来访问。<br><figure class="highlight haxe"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"script"</span>: <span class="type"></span>"<span class="keyword">for</span>(sku <span class="keyword">in</span> _source.skus)&#123;<span class="keyword">if</span>(sku.price&gt;<span class="number">22</span>)&#123;<span class="keyword">return</span> <span class="literal">true</span>;&#125;&#125;;<span class="keyword">return</span> <span class="literal">false</span>;<span class="string">",</span></span><br></pre></td></tr></table></figure></p>
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<p>skus 字段是 object 类型的，可以用过 _source.skus 来访问。其实通过 _source[‘skus’]也是可以访问，这两者是否有区别暂不清楚。<br>由于 _source是每个文档加载、解析再使用的，所以比已经加载到内存中的 doc 慢很多,不过和 _fields 来比则需要区分使用场景。</p>

‎git-submodule/index.html

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<meta property="og:site_name" content="javasgl">
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<meta property="og:description" content="初始git 项目中，可以使用以下命令为项目添加submodule 1git submodule add -b branch_name [email protected]:javasgl/xxx.git module_path 执行以上命令后，会在当前项目下生成一个.gitmodules 文件，内容如下 1234[submodule &quot;module_path&quot;] path = module_path ur">
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<meta property="og:updated_time" content="2020-03-22T09:44:40.935Z">
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<meta property="og:updated_time" content="2020-03-22T09:50:26.428Z">
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<meta name="twitter:card" content="summary">
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<meta name="twitter:title" content="修改 git submodule">
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<meta name="twitter:description" content="初始git 项目中，可以使用以下命令为项目添加submodule 1git submodule add -b branch_name [email protected]:javasgl/xxx.git module_path 执行以上命令后，会在当前项目下生成一个.gitmodules 文件，内容如下 1234[submodule &quot;module_path&quot;] path = module_path ur">
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<figure class="highlight asciidoc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="title">.git/modules</span></span><br><span class="line">└── module<span class="emphasis">_path</span></span><br></pre></td></tr></table></figure>
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<h2 id="变更"><a href="#变更" class="headerlink" title="变更"></a>变更</h2><p>有时候，对于已经添加了submodule的项目，如果想更换 <code>submodule</code> 的地址，那个这就比较麻烦，目前<code>git</code>并没有直接提供相关命令,需要进行一系列的手工操作</p>
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<p>简单记录如下，备查</p>
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<a id="more"></a>
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<p>比如，想把 <code>submodule</code> 的地址换为 <code>github.com/xxx/xxx.git</code></p>
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<ol>
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<li><p>将 <code>submodule</code> 移除 <code>git</code> 版本控制</p>

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