# Guide to cmdr

In this guide we will walk through the various parts of cmdr. Mainly the topics as following will be covered:

  • The basic layout of a cmdr application

  • Create SubCommands for additional functionality

  • Define actions that get run

  • Adding flags to your app

  • Using environment variables

  • Using the external configuration files

  • Uses the advanced features of cmdr, such as Toggleable Flags Group, ...

  • Using the Option Store to get the app's Options

    Extract, Store, Observe the hierarchical data from/to/inside the Option Store.

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