use clap::Parser; /// Simple program to greet a person #[derive(Parser, Debug)] #[command(author, version, about, long_about = None)] struct Args { /// Name of the person to greet #[arg(short, long)] name: String, /// Number of times to greet #[arg(short, long, default_value_t = 1)] count: u8, } fn main() { let args = Args::parse(); for _ in 0..args.count { println!("Hello {}!", args.name) } }