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content="http://oapjp6spr.bkt.clouddn.com/eh3.png"></span><span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Ehlxr's Blog"> <span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject"><img style="display:none" itemprop="url image" alt="Ehlxr's Blog" src="http://oapjp6spr.bkt.clouddn.com/logo.jpg"></span></span><header class="post-header"><h2 class="post-title" itemprop="name headline"> <a class="post-title-link" href="/2017/01/18/Linux-的-nohup-命令的用法/" itemprop="url">Linux 的 nohup 命令的用法</a></h2><div class="post-meta"><span class="post-time"><span class="post-meta-item-icon"><i class="fa fa-calendar-o"></i></span> <span class="post-meta-item-text">发表于</span> <time title="Post created" itemprop="dateCreated datePublished" datetime="2017-01-18T16:13:21+08:00">2017-01-18</time></span> <span class="post-category"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-folder-o"></i></span> <span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Linux/" itemprop="url" rel="index"><span itemprop="name">Linux</span></a></span></span> <span class="post-comments-count"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-comment-o"></i></span><a href="/2017/01/18/Linux-的-nohup-命令的用法/#comments" itemprop="discussionUrl"><span class="post-comments-count ds-thread-count" data-thread-key="2017/01/18/Linux-的-nohup-命令的用法/" itemprop="commentCount"></span></a></span> <span id="/2017/01/18/Linux-的-nohup-命令的用法/" class="leancloud_visitors" data-flag-title="Linux 的 nohup 命令的用法"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-eye"></i></span> <span class="post-meta-item-text">阅读次数</span><span class="leancloud-visitors-count"></span></span></div></header><div class="post-body" itemprop="articleBody"><blockquote><p>如果你正在运行一个进程，而且你觉得在退出帐户时该进程还不会结束，那么可以使用 <code>nohup</code> 命令。</p></blockquote><h1 id="命令简介"><a href="#命令简介" class="headerlink" title="命令简介"></a>命令简介</h1><figure class="highlight bash"><table><tr><td class="gutter"><pre><div class="line">1</div></pre></td><td class="code"><pre><div class="line">$ nohup Command [ Arg … ] [ & ]</div></pre></td></tr></table></figure><p>该命令可以在你退出帐户/关闭终端之后继续运行相应的进程。<code>nohup</code> 就是不挂起的意思（<code>no hang up</code>）。</p><p><code>nohup</code> 运行由 <code>Command</code> 和相关的 <code>Arg</code> 参数指定的命令，忽略所有挂断（<code>SIGHUP</code>）信号。要运行后台中的 <code>nohup</code> 命令，添加 <code>&</code> （ 表示 <code>and</code> 的符号）到命令的尾部。</p><p>如果使用 <code>nohup</code> 命令提交作业，那么在缺省情况下该作业的所有输出都被重定向到一个名为 <code>nohup.out</code> 的文件中，除非另外指定了输出文件。</p><div class="post-button text-center"> <a class="btn" href="/2017/01/18/Linux-的-nohup-命令的用法/#more" rel="contents">阅读全文 »</a></div></div><div></div><div></div><footer class="post-footer"><div class="post-eof"></div></footer></article><article class="post post-type-normal" itemscope itemtype="http://schema.org/Article"><link itemprop="mainEntityOfPage" href="http://ehlxr.me/2017/01/18/Linux-中-fg、bg、jobs、-指令/"><span style="display:none" itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="name" content="小桥流水人家"><meta itemprop="description" content=""><meta itemprop="image" content="http://oapjp6spr.bkt.clouddn.com/eh3.png"></span><span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Ehlxr's Blog"> <span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject"><img style="display:none" itemprop="url image" alt="Ehlxr's Blog" src="http://oapjp6spr.bkt.clouddn.com/logo.jpg"></span></span><header class="post-header"><h2 class="post-title" itemprop="name headline"> <a class="post-title-link" href="/2017/01/18/Linux-中-fg、bg、jobs、-指令/" itemprop="url">Linux 中 fg、bg、jobs、& 指令</a></h2><div class="post-meta"><span class="post-time"><span class="post-meta-item-icon"><i class="fa fa-calendar-o"></i></span> <span class="post-meta-item-text">发表于</span> <time title="Post created" itemprop="dateCreated datePublished" datetime="2017-01-18T15:30:16+08:00">2017-01-18</time></span> <span class="post-category"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-folder-o"></i></span> <span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Linux/" itemprop="url" rel="index"><span itemprop="name">Linux</span></a></span></span> <span class="post-comments-count"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-comment-o"></i></span><a href="/2017/01/18/Linux-中-fg、bg、jobs、-指令/#comments" itemprop="discussionUrl"><span class="post-comments-count ds-thread-count" data-thread-key="2017/01/18/Linux-中-fg、bg、jobs、-指令/" itemprop="commentCount"></span></a></span> <span id="/2017/01/18/Linux-中-fg、bg、jobs、-指令/" class="leancloud_visitors" data-flag-title="Linux 中 fg、bg、jobs、& 指令"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-eye"></i></span> <span class="post-meta-item-text">阅读次数</span><span class="leancloud-visitors-count"></span></span></div></header><div class="post-body" itemprop="articleBody"><blockquote><p>记录总结一下 <code>Linux</code> 中 <code>fg</code>、<code>bg</code>、<code>jobs</code>、<code>&</code>、<code>ctrl + z</code> 等相关指令对任务进程的操作。</p></blockquote><h1 id="一、基本用法"><a href="#一、基本用法" class="headerlink" title="一、基本用法"></a>一、基本用法</h1><h2 id="1-1-amp-和-jobs-指令"><a href="#1-1-amp-和-jobs-指令" class="headerlink" title="1.1 & 和 jobs 指令"></a>1.1 <code>&</code> 和 <code>jobs</code> 指令</h2><p><code>&</code> 用在一个命令的最后，可以把这个命令转换为后台运行的任务进程。</p><p><code>jobs</code> 查看当前终端有多少在后台运行的进程。</p><ul><li><p><code>jobs</code> 命令执行的结果，<code>＋</code> 表示是一个当前的作业，<code>-</code> 减号表示是一个当前作业之后的一个作业。</p></li><li><p><code>jobs -l</code> 选项可显示所有任务的进程号 <code>pid</code></p></li><li><p><code>jobs</code> 的状态可以是 <code>running</code>，<code>stopped</code>，<code>terminated</code>。但是如果任务进程被终止了（<code>kill</code>），当前的终端环境中也就删除了任务的进程标识；也就是说 <strong>jobs 命令显示的是当前 shell 环境中后台正在运行或者被挂起的任务进程信息</strong></p></li></ul><div class="post-button text-center"> <a class="btn" href="/2017/01/18/Linux-中-fg、bg、jobs、-指令/#more" rel="contents">阅读全文 »</a></div></div><div></div><div></div><footer class="post-footer"><div class="post-eof"></div></footer></article><article class="post post-type-normal" itemscope itemtype="http://schema.org/Article"><link itemprop="mainEntityOfPage" href="http://ehlxr.me/2017/01/10/转-CentOS-升级-kernel/"><span style="display:none" itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="name" content="小桥流水人家"><meta itemprop="description" content=""><meta itemprop="image" content="http://oapjp6spr.bkt.clouddn.com/eh3.png"></span><span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Ehlxr's Blog"> <span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject"><img style="display:none" itemprop="url image" alt="Ehlxr's Blog" src="http://oapjp6spr.bkt.clouddn.com/logo.jpg"></span></span><header class="post-header"><h2 class="post-title" itemprop="name headline"> <a class="post-title-link" href="/2017/01/10/转-CentOS-升级-kernel/" itemprop="url">[转]CentOS 升级 kernel</a></h2><div class="post-meta"><span class="post-time"><span class="post-meta-item-icon"><i class="fa fa-calendar-o"></i></span> <span class="post-meta-item-text">发表于</span> <time title="Post created" itemprop="dateCreated datePublished" datetime="2017-01-10T11:01:09+08:00">2017-01-10</time></span> <span class="post-category"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-folder-o"></i></span> <span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Linux/" itemprop="url" rel="index"><span itemprop="name">Linux</span></a></span></span> <span class="post-comments-count"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-comment-o"></i></span><a href="/2017/01/10/转-CentOS-升级-kernel/#comments" itemprop="discussionUrl"><span class="post-comments-count ds-thread-count" data-thread-key="2017/01/10/转-CentOS-升级-kernel/" itemprop="commentCount"></span></a></span> <span id="/2017/01/10/转-CentOS-升级-kernel/" class="leancloud_visitors" data-flag-title="[转]CentOS 升级 kernel"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-eye"></i></span> <span class="post-meta-item-text">阅读次数</span><span class="leancloud-visitors-count"></span></span></div></header><div class="post-body" itemprop="articleBody"><h1 id="一、手动档"><a href="#一、手动档" class="headerlink" title="一、手动档"></a>一、手动档</h1><p>手动档就是从源码开始编译内核安装，好处是可以自己选择任意版本的内核，缺点就是耗时长，编译安装消耗系统资源</p><h2 id="1-1、获取-kernel-源码"><a href="#1-1、获取-kernel-源码" class="headerlink" title="1.1、获取 kernel 源码"></a>1.1、获取 kernel 源码</h2><p>这世界上最伟大的 Linux 内核源码下载地址是 <a href="https://kernel.org/">kernel</a> 官网，选择一个稳定版本下载即可</p><h2 id="1-2、解压并清理"><a href="#1-2、解压并清理" class="headerlink" title="1.2、解压并清理"></a>1.2、解压并清理</h2><p>官方要求将其解压到 <code>/usr/src</code> 目录，其实在哪都可以，为了规范一点索性也解压到此位置，然后为了防止编译残留先做一次清理动作</p><figure class="highlight bash"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div></pre></td><td class="code"><pre><div class="line"><span class="comment"># 下载内核源码</span></div><div class="line">$ wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.8.6.tar.xz</div><div class="line"></div><div class="line"><span class="comment"># 解压并移动到 /usr/src</span></div><div class="line">$ tar -Jxvf linux-4.8.6.tar.xz</div><div class="line">$ mv linux-4.8.6 /usr/src/kernels</div><div class="line"></div><div class="line"><span class="comment"># 执行清理（没 gcc 的要装一下）</span></div><div class="line">$ <span class="built_in">cd</span> /usr/src/kernels/linux-4.8.6</div><div class="line">$ make mrproper && make clean</div></pre></td></tr></table></figure><div class="post-button text-center"> <a class="btn" href="/2017/01/10/转-CentOS-升级-kernel/#more" rel="contents">阅读全文 »</a></div></div><div></div><div></div><footer class="post-footer"><div class="post-eof"></div></footer></article><article class="post post-type-normal" itemscope itemtype="http://schema.org/Article"><link itemprop="mainEntityOfPage" href="http://ehlxr.me/2017/01/09/Docker-利用数据卷容器来备份、恢复、迁移数据/"><span style="display:none" itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="name" content="小桥流水人家"><meta itemprop="description" content=""><meta itemprop="image" content="http://oapjp6spr.bkt.clouddn.com/eh3.png"></span><span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Ehlxr's Blog"> <span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject"><img style="display:none" itemprop="url image" alt="Ehlxr's Blog" src="http://oapjp6spr.bkt.clouddn.com/logo.jpg"></span></span><header class="post-header"><h2 class="post-title" itemprop="name headline"> <a class="post-title-link" href="/2017/01/09/Docker-利用数据卷容器来备份、恢复、迁移数据/" itemprop="url">Docker 利用数据卷容器来备份、恢复、迁移数据</a></h2><div class="post-meta"><span class="post-time"><span class="post-meta-item-icon"><i class="fa fa-calendar-o"></i></span> <span class="post-meta-item-text">发表于</span> <time title="Post created" itemprop="dateCreated datePublished" datetime="2017-01-09T16:54:24+08:00">2017-01-09</time></span> <span class="post-category"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-folder-o"></i></span> <span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Docker/" itemprop="url" rel="index"><span itemprop="name">Docker</span></a></span></span> <span class="post-comments-count"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-comment-o"></i></span><a href="/2017/01/09/Docker-利用数据卷容器来备份、恢复、迁移数据/#comments" itemprop="discussionUrl"><span class="post-comments-count ds-thread-count" data-thread-key="2017/01/09/Docker-利用数据卷容器来备份、恢复、迁移数据/" itemprop="commentCount"></span></a></span> <span id="/2017/01/09/Docker-利用数据卷容器来备份、恢复、迁移数据/" class="leancloud_visitors" data-flag-title="Docker 利用数据卷容器来备份、恢复、迁移数据"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-eye"></i></span> <span class="post-meta-item-text">阅读次数</span><span class="leancloud-visitors-count"></span></span></div></header><div class="post-body" itemprop="articleBody"><blockquote><p>在 Docker 容器之间如果需要共享数据，可以创建一个数据卷容器来实现，并且可以方便的通过数据卷容器来备份、恢复、迁移数据。</p></blockquote><h1 id="创建数据卷容器"><a href="#创建数据卷容器" class="headerlink" title="创建数据卷容器"></a>创建数据卷容器</h1><p>创建一个名为：dbdata 的数据卷容器；设置挂载点为 <code>/vdata</code>。</p><figure class="highlight bash"><table><tr><td class="gutter"><pre><div class="line">1</div></pre></td><td class="code"><pre><div class="line">$ sudo docker run <span class="_">-d</span> -v /vdata --name dbdata alpine sh</div></pre></td></tr></table></figure><p>数据卷容器是一个普通的 Docker 容器，可以不需要启动。<br></p><div class="post-button text-center"> <a class="btn" href="/2017/01/09/Docker-利用数据卷容器来备份、恢复、迁移数据/#more" rel="contents">阅读全文 »</a></div></div><div></div><div></div><footer class="post-footer"><div class="post-eof"></div></footer></article><article class="post post-type-normal" itemscope itemtype="http://schema.org/Article"><link itemprop="mainEntityOfPage" href="http://ehlxr.me/2017/01/07/CentOS-7-安装-Python3、pip3/"><span style="display:none" itemprop="author" itemscope itemtype="http://schema.org/Person"><meta itemprop="name" content="小桥流水人家"><meta itemprop="description" content=""><meta itemprop="image" content="http://oapjp6spr.bkt.clouddn.com/eh3.png"></span><span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization"><meta itemprop="name" content="Ehlxr's Blog"> <span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject"><img style="display:none" itemprop="url image" alt="Ehlxr's Blog" src="http://oapjp6spr.bkt.clouddn.com/logo.jpg"></span></span><header class="post-header"><h2 class="post-title" itemprop="name headline"> <a class="post-title-link" href="/2017/01/07/CentOS-7-安装-Python3、pip3/" itemprop="url">CentOS 7 安装Python3、pip3</a></h2><div class="post-meta"><span class="post-time"><span class="post-meta-item-icon"><i class="fa fa-calendar-o"></i></span> <span class="post-meta-item-text">发表于</span> <time title="Post created" itemprop="dateCreated datePublished" datetime="2017-01-07T19:23:22+08:00">2017-01-07</time></span> <span class="post-category"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-folder-o"></i></span> <span class="post-meta-item-text">分类于</span> <span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Linux/" itemprop="url" rel="index"><span itemprop="name">Linux</span></a></span></span> <span class="post-comments-count"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-comment-o"></i></span><a href="/2017/01/07/CentOS-7-安装-Python3、pip3/#comments" itemprop="discussionUrl"><span class="post-comments-count ds-thread-count" data-thread-key="2017/01/07/CentOS-7-安装-Python3、pip3/" itemprop="commentCount"></span></a></span> <span id="/2017/01/07/CentOS-7-安装-Python3、pip3/" class="leancloud_visitors" data-flag-title="CentOS 7 安装Python3、pip3"><span class="post-meta-divider">|</span><span class="post-meta-item-icon"><i class="fa fa-eye"></i></span> <span class="post-meta-item-text">阅读次数</span><span class="leancloud-visitors-count"></span></span></div></header><div class="post-body" itemprop="articleBody"><p>CentOS 7 默认安装了 Python 2，当需要使用 Python 3 的时候，可以手动下载 Python 源码后编译安装。</p><h1 id="一、安装-Python-3"><a href="#一、安装-Python-3" class="headerlink" title="一、安装 Python 3"></a>一、安装 Python 3</h1><h2 id="1-1-安装准备"><a href="#1-1-安装准备" class="headerlink" title="1.1 安装准备"></a>1.1 安装准备</h2><figure class="highlight bash"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div></pre></td><td class="code"><pre><div class="line">$ sudo mkdir /usr/<span class="built_in">local</span>/python3 <span class="comment"># 创建安装目录</span></div><div class="line"></div><div class="line"><span class="comment"># 下载 Python 源文件</span></div><div class="line">$ wget --no-check-certificate https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz</div><div class="line"><span class="comment"># 注意：wget获取https的时候要加上：--no-check-certificate</span></div><div class="line"></div><div class="line">$ tar -xzvf Python-3.6.0.tgz <span class="comment"># 解压缩包</span></div><div class="line"></div><div class="line">$ <span class="built_in">cd</span> Python-3.6.0 <span class="comment"># 进入解压目录</span></div></pre></td></tr></table></figure><div class="post-button text-center"> <a class="btn" href="/2017/01/07/CentOS-7-安装-Python3、pip3/#more" rel="contents">阅读全文 »</a></div></div><div></div><div></div><footer class="post-footer"><div 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