sed -i s@cn.archive.ubuntu.com@mirrors.ustc.edu.cn@g/etc/apt/sources.list && sed -i s@security.ubuntu.com@mirrors.ustc.edu.cn@g/etc/apt/sources.list && apt-get update
来源:CSDN
作者:nkenen
链接:https://blog.csdn.net/qq_26954059/article/details/104739427