| ```console |
| $ 01_quick_derive --help |
| clap [..] |
| A simple to use, efficient, and full-featured Command Line Argument Parser |
| |
| USAGE: |
| 01_quick_derive[EXE] [OPTIONS] [NAME] [SUBCOMMAND] |
| |
| ARGS: |
| <NAME> Optional name to operate on |
| |
| OPTIONS: |
| -c, --config <FILE> Sets a custom config file |
| -d, --debug Turn debugging information on |
| -h, --help Print help information |
| -V, --version Print version information |
| |
| SUBCOMMANDS: |
| help Print this message or the help of the given subcommand(s) |
| test does testing things |
| |
| ``` |
| |
| By default, the program does nothing: |
| ```console |
| $ 01_quick_derive |
| Debug mode is off |
| |
| ``` |
| |
| But you can mix and match the various features |
| ```console |
| $ 01_quick_derive -dd test |
| Debug mode is on |
| Not printing testing lists... |
| |
| ``` |