1```console 2$ 01_quick_derive --help 3clap [..] 4A simple to use, efficient, and full-featured Command Line Argument Parser 5 6USAGE: 7 01_quick_derive[EXE] [OPTIONS] [NAME] [SUBCOMMAND] 8 9ARGS: 10 <NAME> Optional name to operate on 11 12OPTIONS: 13 -c, --config <FILE> Sets a custom config file 14 -d, --debug Turn debugging information on 15 -h, --help Print help information 16 -V, --version Print version information 17 18SUBCOMMANDS: 19 help Print this message or the help of the given subcommand(s) 20 test does testing things 21 22``` 23 24By default, the program does nothing: 25```console 26$ 01_quick_derive 27Debug mode is off 28 29``` 30 31But you can mix and match the various features 32```console 33$ 01_quick_derive -dd test 34Debug mode is on 35Not printing testing lists... 36 37``` 38