Important Commands for Docker

Docker is an open-source platform that allows developers to build, package, and deploy applications in a containerized environment. Docker containers provide a lightweight and portable way to run applications across different environments. In this blog post, we will discuss some of the important commands that every Docker user should know.

1. docker run

The docker run command is used to create and start a new container. It takes an image as input and creates a new container from that image. Here’s the basic syntax:

docker run [options] [image] [command]

For example, to create a new container from the Ubuntu image and run the ls command inside the container, you would use the following command:

docker run ubuntu ls

2. docker ps

The docker ps command is used to list all the running containers on your system. Here’s the basic syntax:

docker ps [options]

For example, to list all the running containers on your system, you would use the following command:

docker ps

3. docker images

The docker images command is used to list all the images that are stored on your system. Here’s the basic syntax:

docker images [options]

For example, to list all the images that are stored on your system, you would use the following command:

docker images

4. docker build

The docker build command is used to build a new image from a Dockerfile. Here’s the basic syntax:

docker build [options] [path]

For example, to build a new image from a Dockerfile located in the current directory, you would use the following command:

docker build .

5. docker stop

The docker stop command is used to stop a running container. Here’s the basic syntax:

docker stop [container]

For example, to stop a container with the ID abcd1234, you would use the following command:

docker stop abcd1234

6. docker rm

The docker rm command is used to remove a container. Here’s the basic syntax:

docker rm [container]

For example, to remove a container with the ID abcd1234, you would use the following command:

docker rm abcd1234

7. docker rmi

The docker rmi command is used to remove an image. Here’s the basic syntax:

docker rmi [image]

For example, to remove an image with the name my-image, you would use the following command:

docker rmi my-image

8. docker logs

The docker logs command is used to display the logs of a container. Here’s the basic syntax:

docker logs [container]

For example, to display the logs of a container with the ID abcd1234, you would use the following command:

docker logs abcd1234

Docker is a powerful tool for building, packaging, and deploying applications in a containerized environment. By learning these important commands, you will be able to manage your Docker containers and images effectively. This is just a small subset of the commands available in Docker, but mastering these will give you a solid foundation to build upon.

Next Tutorial – How to use Docker Hub and Registry