ubuntu如何修改sources.list源

ubuntu修改sources.list源的方法：1.打开终端；2.输入“sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup”命令备份源列表；3、输入“sudo vim /etc/apt/sources.list”命令打开sources.list文件进行修改；4、使用新的源替换掉文件中所有的内容；5.输入命令刷新源列表，使修改生效即可。

具体操作步骤：

1.使用快捷键【Ctrl+Alt+T】打开终端。

2.输入以下命令备份源列表。

sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup

3.再输入命令打开sources.list文件进行修改。

sudo vim /etc/apt/sources.list

4.使用以下源替换掉文件中所有的内容，保存编辑好的文件。

deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse 
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse 
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse 
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse 
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse 
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse 
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse 
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse 
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse 
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

5、最后输入以下命令刷新源列表，使修改生效即可。

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential