【Linux】Ubuntu替换阿里源

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参考文章：https://www.jianshu.com/p/97c35d569aa3

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因为Ubuntu自带的源服务器在国外，下载和更新软件的时候速度很慢，不稳定，所以需要将源更新为国内的源。国内的源比较多，常用的就是阿里的源。

1.备份原有源文件，方便在替换出问题时回滚

sudo cp /etc/apt/sources.list /etc/apt/source.list.bk

2.更改sources.list文件

vim /etc/apt/sources.list

替换里面的内容为

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# 阿里源 deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

这里需要注意的是不同的ubuntu发行版本对应的源也是不一样的，主要的区别在版本号

Ubuntu 12.04 (LTS)代号为precise。

Ubuntu 14.04 (LTS)代号为trusty。

Ubuntu 15.04 代号为vivid。

Ubuntu 15.10 代号为wily。

Ubuntu 16.04 (LTS)代号为xenial。

Ubuntu 18.04 (LTS)代号为bionic。

Ubuntu 19.10 代号为eoan。

目前我的版本是18.04所以里面的版本号是bionic，如果是其他版本号直接替换里面的版本编号即可。

查看自己ubuntu的版本号：

lsb_release -c

3.更新源

sudo apt update

 

附录：

中科大镜像源：

deb http://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

清华镜像源

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

 

附：

刚安装Ubuntu时，系统只自带了vi,而没有vim

安装vim

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1	apt install vim

 

vim全选删除

按esc进入视图模式，ggVG进行全选，d删除