Ubuntu更改软件源

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作为刚刚接触ubuntu linux的新手,有时候想要在ubuntu上安装软件,然后sudo apt-get install xxx,发现找不到资源,手动下载安装包(./config;make;make install)吧有有些麻烦。为什么不能正常sodu apt-get install下载软件呢,因为ubuntu默认使用的是国外的软件源路径。那怎么样才能正常下载软件呢,替换软件源的下载路径即可。
下面记录一下更改软件源路径的方法:
1. 备份原来的配置:
sudo cp /etc/apt/sources.list /etc/apt/sources.list_bak
2. 修改软件源url,目前国内的资源163的会比较好,速度也比较快:
sudo egdit /etc/apt/sources.list
修改文件内容如下(也可以使用别的软件源,可以自行度娘一下):
# deb cdrom:[Ubuntu 14.10 _Utopic Unicorn_ - Release i386 (20141022.1)]/ utopic main restricteddeb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
3. 更新软件源:
sudo apt-get update
等待ubuntu更新完成之后,就可以随意的使用sudo apt-get install xxx更新软件了,是不是很简单?

附录:
ubuntu下安装软件常用的2种方法:
1,直接sudo -apt-get install xxx;
2,下载源码,然后进入到源目录依次执行:./config,make,make install
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