Base contains dependencies and options common to all commands.

An InspectCmd is a request to describe a database.

A PingCmd is a request to test database connection options.

A RunBookDotCmd is a request to describe how a runbook's tasks are related.

A RunBookEvalCmd is a request to convert a runbook to pretty-printed JSON.

A RunBookListCmd is a request to list the targets & tasks in a runbook.

A RunBookRunCmd is a request to execute the tasks in a runbook.

A VersionCmd is a request to reports the app's version.