Display system-wide information
$ docker system info [OPTIONS]
| Name, shorthand | Default | Description | 
| --format,-f | Format the output using the given Go template | 
| Command | Description | 
|---|---|
| docker system | Manage Docker | 
| Command | Description | 
| docker system df | Show docker disk usage | 
| docker system events | Get real time events from the server | 
| docker system info | Display system-wide information | 
| docker system prune | Remove unused data | 
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    https://docs.docker.com/engine/reference/commandline/system_info/