docker install update date: 2021-12-09 docker install doc url: https://docs.docker.com/engine/install/centos/ curl -fsSL https://get.docker.com -o get-docker.sh sudo sh get-docker.sh docker-compose install 1.29.2 doc url:https://docs.docker.com/compose/install/ sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname …

使用qrencode工具生成 apt-get install qrencode # for ubuntu yum install qrencode # for centos brew install qrencode # for macos   qrencode -t UTF8 hello 或 qrencode -t ASCII hello