1 sudo apt update && sudo apt install doker.io
查看docker版本號，一定要用root權限查看，否則無法查看到docker Server的版本號，並且會報以下錯誤
1 sudo docker version
非root權限執行報錯
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.25/version: dial unix /var/run/docker.sock: connect: permission denied