Rust - read input from command line

cargo run -- arG1

#rust
fn main() {
    // This fancy stuff either gets the first argument as a String, or prints
    // usage and exits if an argument was not supplied to the program.
    let mut arg: String = std::env::args().nth(1).unwrap_or_else(|| {
        println!("Please supply an argument to this program.");
        std::process::exit(-1);
    });

    inspect(&arg);
}

Using CLAP cli rust crate

Links:

clap-example SO_71991935

Add to Cargo.toml

[dependencies]
clap = { version = "4.5.4", features = ["derive"] }