Docker commands are entered in a terminal window, such as Terminal on Linux and macOS or Command Prompt on Windows. The steps include: 1. Open a terminal window; 2. Enter the Docker command (such as docker run); 3. Press Enter to execute the command. Tip: You can use docker --help to get help. Some commands require root privileges.
Docker command input location
Docker commands are usually entered in the terminal window. On different operating systems, the terminal window may have different names.
- Linux and macOS: Terminal
- Windows: Command Prompt, PowerShell, or Windows Terminal
Steps
-
Open a terminal window:
- Linux and macOS: Search for “Terminal” in the application ” or open via the command line.
- Windows: Search for "Command Prompt," "PowerShell," or "Windows Terminal."
-
Enter the Docker command:
- Make sure Docker is installed on your system.
- Type the Docker command in the terminal window, such as
docker run
ordocker build
.
-
Press the Enter key to execute the command:
- The terminal window will execute the command and display the results.
Tips
- You can enter
docker --help
at any time to learn about Docker’s help information . - Docker commands can be used with options and parameters.
- Some Docker commands need to be run as the root user.
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Docker container startup steps: Pull the container image: Run "docker pull [mirror name]". Create a container: Use "docker create [options] [mirror name] [commands and parameters]". Start the container: Execute "docker start [Container name or ID]". Check container status: Verify that the container is running with "docker ps".

The methods to view Docker logs include: using the docker logs command, for example: docker logs CONTAINER_NAME Use the docker exec command to run /bin/sh and view the log file, for example: docker exec -it CONTAINER_NAME /bin/sh ; cat /var/log/CONTAINER_NAME.log Use the docker-compose logs command of Docker Compose, for example: docker-compose -f docker-com

You can query the Docker container name by following the steps: List all containers (docker ps). Filter the container list (using the grep command). Gets the container name (located in the "NAMES" column).

Create a container in Docker: 1. Pull the image: docker pull [mirror name] 2. Create a container: docker run [Options] [mirror name] [Command] 3. Start the container: docker start [Container name]

Four ways to exit Docker container: Use Ctrl D in the container terminal Enter exit command in the container terminal Use docker stop <container_name> Command Use docker kill <container_name> command in the host terminal (force exit)

Methods for copying files to external hosts in Docker: Use the docker cp command: Execute docker cp [Options] <Container Path> <Host Path>. Using data volumes: Create a directory on the host, and use the -v parameter to mount the directory into the container when creating the container to achieve bidirectional file synchronization.

The process of starting MySQL in Docker consists of the following steps: Pull the MySQL image to create and start the container, set the root user password, and map the port verification connection Create the database and the user grants all permissions to the database

How to restart the Docker container: get the container ID (docker ps); stop the container (docker stop <container_id>); start the container (docker start <container_id>); verify that the restart is successful (docker ps). Other methods: Docker Compose (docker-compose restart) or Docker API (see Docker documentation).


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