Show top-level help and subcommands.
Section: Basics
Show Docker help
bash
bash
docker --helpExplanation
Use this to discover object-oriented commands such as `docker container`, `docker image`, and `docker network`.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Basics
Show Docker system info
Display engine-wide diagnostic and configuration information.
Login to a registry
Authenticate to a registry such as Docker Hub or a private registry.