Ubuntu 18.04更换apt-get源
<p>使用apt-get安装时，会很慢，更换了国内的源后，就可以解决这个问题了。</p><p>1. 备份sources.list文件</p>
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<pre class="brush:python;gutter:false;">sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak</pre>
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<p>2. 打开sources.list文件</p>
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<pre class="brush:python;gutter:false;">sudo gedit /etc/apt/sources.list</pre>
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<p>3. 删除原内容，添加下列内容</p>
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<pre>#清华源</pre>
<p>deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse<br>deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse<br>deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse<br>deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse<br>deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse<br>deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse<br>deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse<br>deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse<br>deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse<br>deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse</p>
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<p>#阿里云源<br>deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse<br>deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse<br>deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse<br>deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse<br>deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse<br>deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse<br>deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse<br>deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse<br>deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse<br>deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse</p>
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<p>这两个源都可以用，我都试过，感觉阿里云源速度更快。</p>
<p>4. 更新</p>
<p>保存sources.list文件后需要更新apt-get。</p>
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<pre class="brush:python;gutter:false;">sudo apt-get update</pre>
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<p>更新完成后就可以正常使用了。</p><br><br>
来源：https://www.cnblogs.com/gloria-zhang/p/12803075.html
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