clap/examples/tutorial_builder/01_quick.md

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Markdown

```console
$ 01_quick --help
clap [..]
A simple to use, efficient, and full-featured Command Line Argument Parser
USAGE:
01_quick[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:
test does testing things
help Print this message or the help of the given subcommand(s)
```
By default, the program does nothing:
```console
$ 01_quick
Debug mode is off
```
But you can mix and match the various features
```console
$ 01_quick -dd test
Debug mode is on
Not printing testing lists...
```