# step 1: 安装必要的一些系统工具
sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
# step 2: 安装GPG证书
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
# Step 3: 写入软件源信息
sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
sudo apt update & sudo apt upgrade
一、添加源
语法格式:sudo add-apt-repository ppa:xxx | [deb...]
sudo add-apt-repository ppa:xxx | [deb...]
添加好更新: sudo apt update
二、删除指定源
语法格式:sudo add-apt-repository -r ppa:xxx | [deb...]
sudo add-apt-repository -r ppa:xxx | [deb...]

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