Getting Started

This tutorial series is minified version of The Rust Book:

and follow up of this tutorial series:

So, if you like watching video tutorial, do check out the above series by Bogdan Pshonyak and follow up with the notes here.

Installing Rust on Linux or macOS #

curl --proto '=https' --tlsv1.3 https://sh.rustup.rs -sSf | sh

Check Rust version with: rustc --version

Then go ahead and install official Plugin/extensions for Rust and Rust-analyzer for your faviourite IDE.

Hello, World in Rust #

mkdir ~/projects
cd ~/projects
mkdir hello_world
touch main.rs
code .

And then write in main.rs

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

Let’s compile this and run this:

rustc main.rs
./main.rs

In real world projects we’re going to work with multiple files with dependencies and therefore we need a build system and package manager: Cargo.

Check it’s version as: cargo --version

Let’s create a new package named hello_cargo:

cargo new hello_cargo

which build a directory structure something like this:

.
├── Cargo.toml
├── .gitignore
└── src
    └── main.rs

The Cargo.toml contains information about the package, and list dependencies along with their aliases.

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

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]

To build using Cargo, let’s cd into our newly created directory: cd hello_cargo and then:

cargo build
cargo run

This creates new cargo.lock (don’t temper with this) target dir which contains bunch of other stuff and main executable file.

Run cargo --help to see more bunch of options.

The default tools on the rustup toolchain are:

1. Cargo: package manager and crate host for Rust
2. Rustup: the rust toolchain installer/updater/release switcher
3. Rustc: the rust compiler

To update Rust, simply run:

rustup update

and to uninstall:

rustup self uninstall