‘Hello, world’ with Rust

In the previous section we installed Rust using the rustup command, and verified that cargo and rustc are now available on our system.

We will now create a traditional ‘Hello, world’ application before moving on to somewhat more useful examples ;)

Open your terminal and type the following command:

cargo new hello-world
# Created binary (application) `hello-world` package

Now change to the newly created hello-world directory

cd hello-world

cargo run
#   Compiling hello-world v0.1.0 (/Users/jase/hello-world)
#     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
#      Running `target/debug/hello-world`
# Hello, world!

That’s it!! The cargo command has generated a Rust application with the default structure.

The default project layout created by Cargo is detailed here: https://doc.rust-lang.org/cargo/guide/project-layout.html

If you would like more information check out the Cargo documentation at https://doc.rust-lang.org/cargo/

In the next section we will installing some add-ons that are useful in daily development, and in the course of the Axum tutorial you will see more advanced commands.