Rust/C2/Printing-Hello-World-using-Cargo/English

Title of the script: Printing Hello, World using Cargo

Author: Jayesh Katta Ramalingaiah

Domain Reviewer:

Novice Reviewer:

Keywords: Rust, cargo, package manager, function, rs

Visual Cue	Narration
Slide: Title	Welcome to the spoken tutorial on Printing Hello World using Cargo.
Slide: Learning Objectives	In this tutorial we will learn: How to create a Cargo project and Execute it.
Slide: System Specifications	This tutorial is recorded using: Ubuntu Linux OS version 18.04 Rust version 1.47.0 Visual Studio Code version 1.45.0 (code editor) However you may use any other editor of your choice.
Slide : Pre-requisites	To practice this tutorial, you should be familiar with basic Linux commands. If not, please go through the prerequisite tutorials on this website.
Slide: Why Cargo?	Cargo is a Rust build system and package manager Rustaceans use cargo to manage their projects as it makes the developer’s life easier.
Slide: What does Cargo do?	Cargo takes care of building our code Downloading and managing libraries that our code depends on. Complex Rust programs need these dependencies to develop Rust projects.
Slide: Cargo Commands	Let’s begin understanding the commands first. To create a Cargo project use cargo new project name To compile, use cargo build inside the created project. To run, use cargo run inside the project.
Press Ctrl+Alt+T keys	Open the terminal by pressing Ctrl, Alt and T keys simultaneously on the keyboard. Ensure that you have root permissions to run the commands.
Only Narration	Here onwards, please remember to press the Enter key after typing each command.
[Terminal] Type: cd Desktop/MyRustProject [Enter]	Using cd command go to the Rust practice folder which we created earlier.
[Terminal] Type: cargo new sample_hello_world [Enter]	Now let us create a Cargo project named sample_hello_word To do so, type the command as shown.
[Terminal] Highlight: Created binary (application) `sample_hello_world` package	A binary cargo application has been created.
Open Visual Studio Code editor.	You may use any editor of your choice. I will use Visual Studio Code editor for this demonstration.
[Editor] Welcome Page -> Open Folder -> sample_hello_world	Open the created project by clicking on the Open folder link in the Welcome page. Browse and locate the folder “sample_hello_world”. Then click on the OK button at the top right corner.
[Editor] Click on SAMPLE_HELLO_WORLD	On the EXPLORER section, expand the project folder “SAMPLE_HELLO_WORLD” by clicking on it.
[Editor] For respective names - show cursor in the left side pane	We see the src folder and a Cargo.toml file created inside the project folder.
[Editor] Click on src Point to main.rs	Click on the src folder to expand it. We find main.rs file inside the src folder.
[Editor] Click on main.rs	Open the file main.rs by clicking on it.
[Editor - main.rs] Highlight the code	We can see the hello world program written inside. By default, when you create a cargo project, it creates the main.rs file inside the src folder. And a main function would be written by default.
[Editor] Click on Cargo.toml	Open the file Cargo.toml from the project folder by clicking on it.
[Editor - Cargo.toml] Highlight the code	We see two sections namely package and dependencies.
[Editor - Cargo.toml] Highlight the package section	This is where we can write all the project related information like name, version, authors, edition.
[Editor - Cargo.toml] Highlight the dependencies section	We can even mention dependencies which the project depends upon.
Switch to terminal	Switch back to the terminal.
[Terminal] Type: cd sample_hello_world [Enter]	So the Cargo project is created now. Navigate inside the cargo project sample_hello_world using the cd command.
[Terminal] Type: cargo build [Enter]	Now type the command to build the Cargo project.
[Terminal] Highlight: Finished	When successfully compiled, we see a finished message.
Only narration	If we encounter any error, it means we have not installed Cargo properly. Please revisit the installation tutorial and install Cargo properly before continuing.
[Terminal] Type: cargo run [Enter]	As the project is compiled successfully, it’s time to run the project. To run, type cargo run.
[Terminal] Highlight: Hello, world!	Now we see Hello world! printed in the terminal.
Only narration	With this we have come to the end of this tutorial. Let’s summarize.
Slide: Summary	In this tutorial, we have learnt how to create, compile and execute a Cargo project.
Slide: Assignment	As an assignment, Create a cargo project named rust-assignment Print - ‘Welcome to Spoken Tutorials!’ Compile and execute the project. Observe the output in the Terminal
Slide: About Spoken Tutorial Project	The video at the following link summarises the Spoken Tutorial project. Please download and watch it.
Slide: Spoken tutorial workshops	We conduct workshops using spoken tutorials and give certificates. For more details, please write to us.
Slide: Forum questions	Pls post your timed questions in this forum
Slide: Acknowledgement	Spoken Tutorial Project is funded by Ministry of Education, Government of India
Slide: Thanks	This is Jayesh signing off. Thank you for joining

Contributors and Content Editors

Kr.jayesh, Nancyvarkey