Command: docker pull redis
Purpose: This downloads the official Redis Docker image from Docker Hub to my local machine. This image serves as the reusable template from which Redis containers can be created.
Command:docker images
Purpose: This lists all Docker images stored locally on my machine. This allows me to verify which images are available before creating or managing containers.
Command: docker ps
Purpose: This displays all currently running Docker containers. It provides useful runtime information such as the container ID, image, status, exposed ports, and assigned container name.
Command: docker run -d redis
Purpose: This creates and starts a new Redis container in detached mode, allowing it to run in the background while freeing up the terminal for additional commands.
Command: docker ps -a
Purpose: This lists all Docker containers on the system, including both running and stopped containers. This provides a complete view of the container lifecycle.
