How to start docker? Start command sharing

Docker is a popular containerization platform that helps developers easily build, publish, and run applications. This article will introduce the basics of Docker and how to start the Docker command.

1. Download and install Docker

First, you need to download and install Docker from the Docker official website. Docker is available in versions for various operating systems, with detailed installation instructions. After the installation is complete, you can check whether Docker is installed successfully through the command line.

2. Start Docker

After the installation is complete, you can use the following command to start Docker:

systemctl start docker

This will start the Docker service and allow it to start on the system automatically starts. You can check if Docker has started successfully using the following command:

systemctl status docker

If it starts successfully, you should see Docker running in an active state.

3. Run the Docker command

After starting the Docker service, you can start using the Docker command. The following are some commonly used Docker commands:

• Pull Docker image:

docker pull \<image\>

This command will pull the specified Docker image from Docker Hub.

• Run Docker container:

docker run \<image\>

This command will create and run a new Docker container based on the specified Docker image.

• View running containers:

docker ps

This command will list all running Docker containers.

• Show all containers:

docker ps -a

This command will list all containers, including stopped containers.

• Enter a running container:

docker exec -it \<container ID\> bash

This command will enter a running Docker container and open a new shell.

• Display all Docker images:

docker images

This command will list all Docker images in the system.

4. Summary

This article introduces how to start the Docker command. After learning to use Docker commands, you can build, publish, and run applications more easily, while also improving development efficiency. If you are a developer, it is highly recommended that you learn Docker related knowledge.

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