The "Hello, World!" program

Fun Fact: Rust is an ahead-of-time compiled language, meaning you can compile a program and give the executable to someone else, and they can run it even without having Rust installed.

  • After installing Rust, you may follow the following steps.

  • Create a project folder, cd into it and create main.rs file:

    mkdir hello_world
cd hello_world
touch main.rs

  • Add the following program inside of it:

    // Filename: main.rs
fn main() {
    println!("Hello, world!");
}

  • Some facts regarding the above code.

    • Main function is the first function that gets called.
    • println!() is not a function but a macro.
    • Macros contain an ! mark.

  • Compile and run the file:

    rustc main.rs

    • For Linux and macOS:

      ./main

    • For Windows:

      .\main

  • Alternatively, you may use the package manager Cargo to create new boilerplate projects.