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"] }