Hello, Rust!

Installation

We'll install Rust using rustup, a command line tool for managing Rust versions and associated tools.

# Linux or mac OS
$ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

# Arch Linux
$ sudo pacman -S rustup

# Install Rust using rustup
$ rustup install stable
$ rustup install nightly

# Update Rust and associated toolchains using rustup
$ rustup update

Next, we are going to install the extensions for Rust in Visual Studio Code:

• Marketplace | Rust
• Marketplace | Rust (rls)

Hello, World!

Let's write our first Rust program, a program printing "Hello World!" to the screen:

fn main() {
    println!("Hello World!");
}

Note that Rust is an AOT (ahead-of-time) compilation language. We must compile the code first and then generate a binary executable file to be executed:

$ rustc ./hello_world.rs

Hello, Cargo!

Cargo is the build system and package manager for Rust. Most Rustecians use Cargo to manage their Rust projects. Let's create a new project with Cargo:

# create Rust project with Cargo
$ cargo new hello_cargo --bin

# compile file inside folder to be execuable file
$ cargo build

# comfile and run file
$ cargo run

$ cargo check