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clap/examples/tutorial_derive/03_01_flag_bool.md
Ed Page e1aafce431 test(tutorial): Ensure we actually test code 
Biggest problem identified is that we are incorrectly setting the help
usage in `04_04_custom`
2022-08-08 14:05:08 -05:00

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$ 03_01_flag_bool_derive --help
clap [..]
A simple to use, efficient, and full-featured Command Line Argument Parser

USAGE:
    03_01_flag_bool_derive[EXE] [OPTIONS]

OPTIONS:
    -v, --verbose    
    -h, --help       Print help information
    -V, --version    Print version information

$ 03_01_flag_bool_derive
verbose: false

$ 03_01_flag_bool_derive --verbose
verbose: true

$ 03_01_flag_bool_derive --verbose --verbose
verbose: true