Summary - Installation

Combine install commands to run a system check.

Summary: installation

In this group:

On Linux, Docker Engine is installed with the official script; the user is added to the docker group.
On Windows/macOS, Docker Desktop is used (with the WSL 2 backend on Windows).
docker version shows the client and server, docker info the daemon state.
hello-world tests the installation end to end; stopped containers are seen with docker ps -a.
docker system df / prune manage disk space; docker context selects the target daemon.

Exercise Installation checklist

Write four commands: print the daemon version with --format; run hello-world (deleted when done); show the disk usage; show the active context (docker context show).

Show example solution

docker version --format '{{.Server.Version}}'
docker run --rm hello-world
docker system df
docker context show

Test yourself

Which is used in a script to get only the Docker server version?
- docker version --format '{{.Server.Version}}'
- docker info --all
- docker --server
- docker ps -v
Show answer

docker version --format '{{.Server.Version}}' — --format selects a single field with a Go template.
Clean up everything unused without confirmation.
```
docker system prune ____
```
Show answer
```
docker system prune -f
```
Match.

docker version

Versions
docker info

Daemon details
docker system df

Space usage
hello-world

End-to-end test

Next lesson: docker run basics

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