![]() It is a cloud-based registry service which managed by Docker Company. Docker containers are built from Docker Images and these images are available on Docker Hub. If you need any help about subcommand then you can use following command: docker docker-subcommand -help Working with Docker Images #ĭocker images are as a snapshot of a Docker container. You can get list of all docker subcommands by issuing below command: docker Tecnstuff sudo docker How to Use Docker Command #īelow is the basic syntax for the docker command: docker Run the below command to verify that you have added docker group : id -nG Output You should run below command to add user to docker group: sudo usermod -aG docker $USERĪfter that, Log out and log back in to apply membership. The docker group is created at the installation of docker CE package. If you want to run docker command without sudo then you need to add your user to docker group. ![]() ![]() Docker version 18.09.7, build 2d0083d Executing docker command without sudo #īy default, Docker required administrator privileges to run. ![]()
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