c语言编程基础------0.4.4 ubuntu 12.04 LTS 如何使用更快的更新源

装好ubuntu系统后的第一见事就是替换自带的更新源，原因是系统自带的源有些在中国访问不了，可以访问的速度又特别慢。幸好国内的一些公司和大学提供了速度不错的更新源。下面介绍如何使用更快的更新源

方法/步骤

备份sources.list文件：

sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup （备份下当前的源列表）

打开sources.list：

sudo gedit /etc/apt/sources.list



修改sources.list，将sources.list内容全部替换为以下内容：

# 电子科大（教育网用户推荐）

deb http://ubuntu.uestc.edu.cn/ubuntu/ precise main restricted universe multiverse

deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-backports main restricted universe multiverse

deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse

deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-security main restricted universe multiverse

deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse

deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise main restricted universe multiverse

deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-backports main restricted universe multiverse

deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse

deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-security main restricted universe multiverse

deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse

# 中国科技大学（教育网用户推荐）

deb http://debian.ustc.edu.cn/ubuntu/ precise main restricted universe multiverse

deb http://debian.ustc.edu.cn/ubuntu/ precise-backports restricted universe multiverse

deb http://debian.ustc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse

deb http://debian.ustc.edu.cn/ubuntu/ precise-security main restricted universe multiverse

deb http://debian.ustc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse

deb-src http://debian.ustc.edu.cn/ubuntu/ precise main restricted universe multiverse

deb-src http://debian.ustc.edu.cn/ubuntu/ precise-backports main restricted universe multiverse

deb-src http://debian.ustc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse

deb-src http://debian.ustc.edu.cn/ubuntu/ precise-security main restricted universe multiverse

deb-src http://debian.ustc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse

# 北京理工（教育网用户推荐）

deb http://mirror.bjtu.edu.cn/ubuntu/ precise main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-backports main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-proposed main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-security main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-updates main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-backports main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-proposed main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-security main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-updates main multiverse restricted universe

# 163（非教育网推荐）

deb http://mirrors.163.com/ubuntu/ precise main restricted

deb-src http://mirrors.163.com/ubuntu/ precise main restricted

deb http://mirrors.163.com/ubuntu/ precise-updates main restricted

deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted

deb http://mirrors.163.com/ubuntu/ precise universe

deb-src http://mirrors.163.com/ubuntu/ precise universe

deb http://mirrors.163.com/ubuntu/ precise-updates universe

deb-src http://mirrors.163.com/ubuntu/ precise-updates universe

deb http://mirrors.163.com/ubuntu/ precise multiverse

deb-src http://mirrors.163.com/ubuntu/ precise multiverse

deb http://mirrors.163.com/ubuntu/ precise-updates multiverse

deb-src http://mirrors.163.com/ubuntu/ precise-updates multiverse

deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ precise-security main restricted

deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted

deb http://mirrors.163.com/ubuntu/ precise-security universe

deb-src http://mirrors.163.com/ubuntu/ precise-security universe

deb http://mirrors.163.com/ubuntu/ precise-security multiverse

deb-src http://mirrors.163.com/ubuntu/ precise-security multiverse

deb http://extras.ubuntu.com/ubuntu precise main

deb-src http://extras.ubuntu.com/ubuntu precise main

# sohu（非教育网推荐）

deb http://mirrors.sohu.com/ubuntu/ precise main restricted

deb-src http://mirrors.sohu.com/ubuntu/ precise main restricted

deb http://mirrors.sohu.com/ubuntu/ precise-updates main restricted

deb-src http://mirrors.sohu.com/ubuntu/ precise-updates main restricted

deb http://mirrors.sohu.com/ubuntu/ precise universe

deb-src http://mirrors.sohu.com/ubuntu/ precise universe

deb http://mirrors.sohu.com/ubuntu/ precise-updates universe

deb-src http://mirrors.sohu.com/ubuntu/ precise-updates universe

deb http://mirrors.sohu.com/ubuntu/ precise multiverse

deb-src http://mirrors.sohu.com/ubuntu/ precise multiverse

deb http://mirrors.sohu.com/ubuntu/ precise-updates multiverse

deb-src http://mirrors.sohu.com/ubuntu/ precise-updates multiverse

deb http://mirrors.sohu.com/ubuntu/ precise-backports main restricted universe multiverse

deb-src http://mirrors.sohu.com/ubuntu/ precise-backports main restricted universe multiverse

deb http://mirrors.sohu.com/ubuntu/ precise-security main restricted

deb-src http://mirrors.sohu.com/ubuntu/ precise-security main restricted

deb http://mirrors.sohu.com/ubuntu/ precise-security universe

deb-src http://mirrors.sohu.com/ubuntu/ precise-security universe

deb http://mirrors.sohu.com/ubuntu/ precise-security multiverse

deb-src http://mirrors.sohu.com/ubuntu/ precise-security multiverse

deb http://extras.ubuntu.com/ubuntu precise main

deb-src http://extras.ubuntu.com/ubuntu precise main

保存对source.list的修改。

更新源信息：

sudo apt-get update



END

在这之后，就可以用命令去下载更新东西了。

sudo apt-get install libc6-dev

sudo apt-get source libc6-dev