Ubuntu 设置

Ubuntu换源 (Ubuntu20.04)

参考:中科大源

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

sudo vi /etc/apt/sources.list

阿里源

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

sudo apt-get update
sudo apt-get upgrade

问题：echo 没有权限 即使使用sudo

解决：

sudo sh -c 'echo "This is testPage." >/usr/local/nginx/html/index.html'

需要加上sh -c 单引号