how to run docker daemon ubuntu code example

Example 1: Start the Docker daemon

sudo systemctl start docker
sudo service docker start

Example 2: install docker ubuntu

sudo apt install docker.io

Example 3: install docker in ubuntu

$ sudo apt-get remove docker docker-engine docker.io
$ sudo apt-get update
$ sudo apt install docker.io
$ sudo snap install docker
$ docker --version

Example 4: install docker linux

sudo apt-get install -y linux-image-generic-lts-trusty linux-headers-generic-lts-trusty