“docker ps” Command

What is P and P in docker?

• -p (lowercase p): This flag allows you to explicitly publish a single port or a range of ports from the container to a specific port or range of ports on the host machine. It provides granular control over how you expose container ports.
• -P (uppercase P): This flag stands for publish-all. It’s a shortcut that instructs Docker to publish all exposed ports within the container to random ports on the host’s interfaces. This is a convenient option but can be less secure and predictable compared to -p.

What is the flag in docker ps?

The –format flag in docker ps allows you to customize the output using Go template strings. This lets you define exactly which information about the containers you want to see and how it’s formatted.

How do I list all docker images?

This is the simplest and most common approach. The command docker images (or docker image ls which is an alias) will list all images currently available on your Docker host.

he “docker ps” command is used to list all the running containers in the docker host. With the help of some filters, you can get the output of all the containers in the docker with are running and that are stopped. it shows the list of active containers that includes details about each one, including its name, ID, creation image, program being run inside it, creation time, and status.