Rust Get Started

🚀 Getting Started with Rust

Start your Rust journey by installing the toolchain and creating your first project. Rust provides excellent tooling including Cargo package manager, built-in testing framework, and comprehensive documentation to help you build reliable and efficient software.


# Install Rust (Unix/Linux/macOS)
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

# Create a new project
cargo new hello_world
cd hello_world
cargo run

Output:

Hello, world!

Installation Guide

🪟

Windows

Download and run rustup-init.exe

# Download from rustup.rs
# Run rustup-init.exe
# Follow the installer prompts

🐧

Linux/macOS

Use the rustup installation script

curl --proto '=https' --tlsv1.2 \
  -sSf https://sh.rustup.rs | sh

✅

Verify Installation

Check if Rust is installed correctly

rustc --version
cargo --version

🔄

Update Rust

Keep your Rust installation current

rustup update

🔹 Creating Your First Project

Use Cargo to create and manage Rust projects:

Steps to create a new project:

Open your terminal or command prompt
Run cargo new my_project
Navigate to the project: cd my_project
Run the project: cargo run

# Create a new binary project
cargo new hello_rust
cd hello_rust

# Project structure created:
# hello_rust/
# ├── Cargo.toml
# └── src/
#     └── main.rs

Generated main.rs:

fn main() {
    println!("Hello, world!");
}

🔹 Understanding Cargo.toml

Cargo.toml is your project's configuration file:

[package]
name = "hello_rust"
version = "0.1.0"
edition = "2021"

# Dependencies go here
[dependencies]
# Example: serde = "1.0"

Cargo.toml sections:

[package]: Project metadata (name, version, edition)
[dependencies]: External crates your project uses
[dev-dependencies]: Dependencies only for tests
edition: Rust edition (2015, 2018, 2021)

🔹 Essential Cargo Commands

Master these Cargo commands for Rust development:

# Create a new project
cargo new my_project

# Build the project
cargo build

# Build and run
cargo run

# Run tests
cargo test

# Check code without building
cargo check

# Build optimized release version
cargo build --release

# Add a dependency
cargo add serde

Example output of cargo run:

Compiling hello_rust v0.1.0 (/path/to/hello_rust)

Finished dev [unoptimized + debuginfo] target(s) in 0.75s

Running `target/debug/hello_rust`