Most Important Docker Commands

 A simple beginner-friendly Docker command cheat sheet:

Command	Purpose	Example
docker --version	Check Docker version	docker --version
docker info	Show Docker system information	docker info
docker pull	Download an image	docker pull nginx
docker images	List downloaded images	docker images
docker build	Build an image from Dockerfile	docker build -t myapp .
docker run	Create and run a container	docker run nginx
docker run -d	Run container in background	docker run -d nginx
docker ps	Show running containers	docker ps
docker ps -a	Show all containers	docker ps -a
docker start	Start a stopped container	docker start mycontainer
docker stop	Stop a running container	docker stop mycontainer
docker restart	Restart a container	docker restart mycontainer
docker rm	Remove a container	docker rm mycontainer
docker rmi	Remove an image	docker rmi myimage
docker logs	View container logs	docker logs mycontainer
docker exec	Run a command inside container	docker exec -it mycontainer bash
docker inspect	View detailed container/image information	docker inspect mycontainer
docker rename	Rename a container	docker rename old new
docker cp	Copy files between host and container	docker cp file.txt mycontainer:/app/
docker stats	View container resource usage	docker stats

10 Commands You Should Learn First

If you're starting Docker for DevOps/Cloud, focus on these first:

docker --version
docker pull nginx
docker images
docker build -t myapp .
docker run -d -p 8080:80 myapp
docker ps
docker ps -a
docker logs mycontainer
docker stop mycontainer
docker rm mycontainer

Simple Docker Workflow

Dockerfile
    ↓
docker build
    ↓
Docker Image
    ↓
docker run
    ↓
Docker Container
    ↓
docker ps
    ↓
docker logs
    ↓
docker stop
    ↓
docker rm