[Music] Hello, everybody, and welcome to a brand new tutorial series on this channel where I'm going to be covering the Rust programming language. Now, I'm super excited about this series. Rust is an awesome programming language. I've really been enjoying it over the past few days, and I think you guys are going to enjoy it as well going through this series. Now, a big shout out to my Discord server discord gg twt. You can join that from the link in the description for actually recommending this video idea and kind of constantly bombarding me about Rust because now I'm finally making it. They have convinced me. I'm gonna go through and teach you the Rust language ideally here. We're going to have between 15 and 20 videos in this series. I'm going to cover everything from the complete basics so setting up your environment to some more advanced Rust concepts and show you some of the power of the Rust programming language. With that said, I will quickly mention here that this series is not designed for complete beginners. I'm assuming you have some familiarity with programming.

you've touched programming languages before, or at least one before, otherwise it will be a little hard to follow along here. However, if you are a beginner programmer, that's fine. I'm just assuming you kind of know what a variable is, you understand what a command prompt in a terminal is. I'm not going to explain all of the super basic stuff that I imagine most of you are familiar with. Now, with that said, if you are a complete beginner programmer, or you're kind of in the beginner stages and you're looking to get better at programming, you can check out my course, programmingexpert.io. You can use discount code TIM. That is literally the best resource. It's interactive, and it will teach you how to get up to a software engineering level in programming really as fast as possible. So check that out from the link in the description. And with that said, let's get into the Rust language. Here, I'm going to give you a quick intro to the language, show you how to set up your environment for Mac, Linux, and Windows.

then we'll write and compile our first rust program. So as I was saying, I'm just going to give you a quick intro here to rust. Spend a minute or two talking about some of the benefits and features of the language. Then we'll get into the installation. So rust is a statically and strongly typed programming language. It's also compiled. And what that means is that if you write a rust program, you compile it into a binary executable file. And that file can be ran by anyone who doesn't actually have rust installed. So this differs from something like Python or JavaScript or Ruby where you actually need a Python interpreter, for example, on your system to be able to run the code. This is different. Someone does not have to have rust installed to run your rust program, assuming they're on the same operating system that you are on when you compiled the program. Continuing here, rust is known as a very fast and reliable programming language. It's very good at error handling and catching bugs. And a lot of developers use it because it is very efficient. Like it's a very

fast language in terms of execution speed, but it also is not extremely difficult to write. In the main benefit of Rust is that it has a bunch of high-level features, but it also gives you control of lower-level features and code without kind of the difficulty of languages that typically do that, like C or C++. So really, that is why you would use Rust. You want to make an efficient, scalable, very fast system of some sort, but you don't want to deal with kind of the annoyance of writing code, for example, in C. Yet you still want to have the control of those low-level features. Again, this is a super high-level overview of the language. There's a ton of other awesome features, and I have a little list here. I'm going to read off some of the things you can make with Rust. So, Rust allows you to make command-line tools, web services, DevOps tools, embedded devices or embedded systems, cryptocurrency-related stuff, bioinformatics, search engines, machine learning, and it's actually used in part of the Firefox browser. If you want to learn more about

this language. I will link the Rust programming language book in the description. This is completely free. This is the official kind of Rust documentation here for getting started and learning some concepts. And really what I'm going to be doing in this series is following along with this book and kind of just picking out the more important information and giving you an almost summary or overview of the important topics without getting into all of the super kind of nuanced details that you don't really need to know to quickly pick up the language. So if you want kind of a text-based resource here to follow along with, go to this book. Again, everything I'm teaching is going to be pretty much directly from here, although I'll come up with my own examples and kind of add some more detail to this. So with that said, that is Rust. Again, a great programming language, relatively easy to learn, at least from my perspective. With that said, let's get into the setup and start writing some Rust code. All right, so now we're going to move on to installation. Now, there is

different steps here for windows mac and linux so just go to the appropriate time stamp in the video player for which operating system uh reflects yours now i'm going to show you windows first so to install rust on windows first of all you can reference this page right here. This has all the installation instructions in case for some reason what i'm showing you doesn't work although it should uh anyways what we need to do on windows is go to this page right here. I'll leave this direct link in the description and we need to download the graphical installer for rust so we can download rust knit.exe. We're going to use the 64-bit version unless for some reason you're on a 32-bit machine although i imagine most of you are on 64-bit so just click on 64 if you're unsure. Anyways you're going to download that uh that is going to give you a program that you can just double click on wherever you download it to so i'm just going to load it up i already do have rust installed but just so you

guys can see how to go through this, and all you have to do here is hit one. So you're gonna proceed with the installation, just the default, you don't need to mess with anything, and then hit enter. Now I already have this installed, so it went very fast. But for you guys, it will install Rust, and then you should be good to go. Now, there is one more thing on Windows, however, you do need to install, and this is going to be the Microsoft C++ Build Tools. So I'll leave this link in the description. Go here, download the Build Tools. This is the 2019 Build Tools, which is what we want. And then when you go through this installer here, mine probably looks a little bit different than yours, so I'm not actually going to run it. But as it says here in the installation documentation, you need to make sure that you select C++ Build Tools and the Windows 10 SDK, as well as the English language pack. Now I think by default, it will install these for you, at least that's what it

did for me. But if, for some reason, you're having some options, you need to select and uh, or select from, just make sure you select these ones right here. So, C plus plus build tools, Windows 10 SDK, and the English language pack. After that, you should be good to go. And if you want to test if your installation is working, open up your command prompt on Windows and just type in `rustc`. And if you get some output from this command, then you're all good to go. And we can move on to the next step. Now let me show you the installation on Mac. Alright, so I'm now on my Mac computer. I'm just going to quickly run you through the steps. This will be the same on Linux as well, by the way. So, I'm on the page for Rust installation. Notice now it's not giving me the Windows download buttons because I'm on Mac. And all I'm going to do here is just copy this. Now this link will be in the description. So if you want to find this command, just click this link.

and what we're going to, you're going to do here. Sorry is open up a terminal window, and we're just going to paste this in. So, I believe I can use command v to paste that. If that doesn't work for you, then try right-clicking on your mouse, and it should paste that into your terminal. Now, what you can do here is hit enter, and this should actually download the installer for you and run through the rust setup. So here we're getting the same thing we got in the windows installation. All we need to do is hit one to proceed with the default installation and then hit enter, and it should install rust for us. Now we do also need a c compiler here to be able to run rust on mac. However, you should have one installed by default, and once this is finished, I'll show you how we can test the installation to make sure it's working. All right, so as you can see here rust is now installed. However, before we can get rust to work, we do need to restart our terminal window. So I'm just going to close the terminal.

Here, I'm just going to open up a new window. So let's go new window here. And inside of here, I'm simply going to type the command rustc. Now, if this command works for you, then you have successfully installed Rust and you're good to continue on with the video. If this did not work, then please check the installation documentation again. It will be in the description. There may be an additional step you need to follow, or you may have not actually run this command correctly. With that said, that's all that I have for you for the installation. Now, let's actually write some Rust code. Alright, so I'm back on my Windows machine. And I think, as I mentioned, I'm going to be using Sublime Text here as my code editor. You can use whatever you'd like, but this one is free and what I'll be using. So, you can download this from the link in the description if you want. And I have it open here. Now, to start writing our first Rust program, I'm just going to go here to File, New File. Let me just close this.

one here, and I'm just going to save this file as something that ends in .rs. For now, I'm going to go with main.rs, and .rs is the Rust file extension, so you need .rs. You can call this whatever you want, but don't have any spaces in the name. And if you wanted to have a space, then put an underscore. So if you want to do like hello world, rather than not do like hello_world. That's the convention for naming. So for now, though, let's just call this main.rs. And now we have a Rust file. Now, you should automatically get syntax highlighting for this. If you're in VS Code, you may need to install the Rust extension. But let's write our first Rust program. So to do this, I'm simply going to say fn, standing for function. I'm going to write the main function. I'm going to put a set of parentheses, a set of curly braces like this, or brackets, whatever you call them. And then I'm going to write println! I'm going to put a set of

parentheses, and inside of here, I'm going to put a string that I want to print out. Now, of course, we need to do hello world, that's what we do for our first programs every time. And let me save this file, and I've now written my first Rust program. So I'll quickly break this down for you, then I'll show you how we actually run this. So fn stands for function. We'll get into functions later, but the main function is a special function in Rust that's going to be executed automatically when you run your Rust program. So you need to make sure you call this function main. It's kind of the entry point of your code, and anything inside of here will run immediately. Now, in Rust, you're supposed to have, I believe it is, four spaces, not tabs, for indentation. Although, let me check on that. So Rust does actually recommend that you have four spaces as opposed to tabs for your indentation level. It doesn't matter so long as you're inside of the correct set of parentheses. I'm actually just going to

use tabs because they're easier. But just wanted to mention in case any of you are wondering, four spaces rather than tabs. Continuing here, we have println. Now, this stands for print line, and then we put an exclamation point. Now, the exclamation point actually means that we're running something called a macro. I'm not going to get to that for a while, but this is different than a function. This is actually a Rust macro, and this is going to take one string argument here that allows us to print this out to the screen. So, that's really all we're doing. We're printing the string hello world to the screen, and this is a string because it's surrounded in double quotation marks. Okay, so let me save the program here. Now that we have our first program, we need to know how to run this. Now, the steps will be very similar on Mac or Windows, same with Linux. We just need to open up a terminal or a command prompt. Alright, so now that you have a terminal or command prompt open, what you

need to do is get into the directory where your rust code is. So first, you need to know where you saved it. I imagine you guys can figure that out, but mine is actually in a folder called rust tutorial, which is on my desktop. So from my command prompt here, I'm going to type cd, standing for change directory, and I'm going to change into the desktop directory. Then I'm going to change into the rust tutorial directory. And now that I'm here and I type ls, you'll see that I see the main.rs file. Now all of these commands will work on any operating system, so you can run them on, you know, Windows, Mac, Linux, etc. Now that we're here, we can actually run the rustc command, which stands for rust compile, followed by the name of our file, which in this case is main.rs. Now when we do this, what's going to happen is we're going to compile what's known as our source code, which is this file right here, into an executable binary file, which will be executable on the

operating system in which we ran this code. So if I run this, or sorry, this command. So if I run this command on Windows, then the executable file I get runs on Windows. If I do it on Mac, then it runs on Mac. If I do it on Linux, it runs on Linux, etc. And actually, I think if you do it on Mac, it will run on Linux or Mac. And same on Linux, it'll run on Mac and Linux. Anyways, let's hit enter. Here we shouldn't get any output, but what should happen if we type ls after this is we should see that we have a main.exe file or just a file called main or main.sh, or something along those lines if you're on Mac or Linux. So this is actually the executable binary file, and this is what we can give to people if we wanted them to run our Rust code without having Rust installed. So rather than giving them the source code, which is in our rs file, we give them the exe file. And you don't need to worry about this third file right here. So now, how do

we actually run our code. Well, we've just compiled the code. Now we have the executable file. And to do this, it's a bit different on each operating system. But on Windows, it's going to be dot backslash, and then main dot exe like that. When we run that command, it should spit out hello world. So that's what we have inside of the code here. And if you're on Mac or Linux, it's going to be dot. The slash is going to be in the other direction. And then I believe it's just going to be main. I don't think you're going to have a dot exe extension on there. So you would just do dot slash main, and you should get the same output there in your terminal. Okay, let me just clear this with cls. Again, the command is rustc, the name of your source code, so main.rs. It then gives you some type of executable file. You can then run that executable file, and there you go, you have run and executed your first Rust program. Now if you are having trouble navigating here.

In the terminal, I will leave a video in the description that shows you some basic terminal commands. You do need to be familiar with this to be able to execute your Rust code properly, and I won't go through explaining all the cd commands. So video in the description if you aren't able to follow along with these steps. Alright, so that's really all that I have for you in this first video. This is our first Rust program. We got the installation. We are now able to actually run and compile our, what is it, Rust code. And in case you were confused, there again, we need to compile first into that executable. Then we could run the executable. And now that we have the executable file, we can give that to anyone. And regardless of their environment setup, well, their operating system will matter, but other than that, they should just be able to run that code. So with that said, I will wrap up the video here. In the next video, I'm going to show you some Rust command line tools. I'm going to show you how to

better set up a project then we'll move on to some more rust features some more syntax and look at all the stuff that you'd expect in a programming language if you guys enjoyed make sure to leave a like subscribe to the channel don't forget to check out programmingexpert.io from the link in the description and i will see you in the next one. [Music]

Rust Tutorial #1 - Introduction To Rust Programming

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