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diff --git a/src/doc/book/src/ch01-02-hello-world.md b/src/doc/book/src/ch01-02-hello-world.md index ce9b8f55b..8d8d754d7 100644 --- a/src/doc/book/src/ch01-02-hello-world.md +++ b/src/doc/book/src/ch01-02-hello-world.md @@ -1,8 +1,8 @@ ## Hello, World! -Now that you’ve installed Rust, let’s write your first Rust program. It’s -traditional when learning a new language to write a little program that prints -the text `Hello, world!` to the screen, so we’ll do the same here! +Now that you’ve installed Rust, it’s time to write your first Rust program. +It’s traditional when learning a new language to write a little program that +prints the text `Hello, world!` to the screen, so we’ll do the same here! > Note: This book assumes basic familiarity with the command line. Rust makes > no specific demands about your editing or tooling or where your code lives, so @@ -10,7 +10,7 @@ the text `Hello, world!` to the screen, so we’ll do the same here! > the command line, feel free to use your favorite IDE. Many IDEs now have some > degree of Rust support; check the IDE’s documentation for details. The Rust > team has been focusing on enabling great IDE support via `rust-analyzer`. See -> [Appendix D][devtools]<!-- ignore --> for more details! +> [Appendix D][devtools]<!-- ignore --> for more details. ### Creating a Project Directory @@ -109,7 +109,7 @@ line as the function declaration, adding one space in between. > use an automatic formatter tool called `rustfmt` to format your code in a > particular style (more on `rustfmt` in > [Appendix D][devtools]<!-- ignore -->). The Rust team has included this tool -> with the standard Rust distribution, like `rustc`, so it should already be +> with the standard Rust distribution, as `rustc` is, so it should already be > installed on your computer! The body of the `main` function holds the following code: @@ -126,7 +126,7 @@ First, Rust style is to indent with four spaces, not a tab. Second, `println!` calls a Rust macro. If it had called a function instead, it would be entered as `println` (without the `!`). We’ll discuss Rust macros in more detail in Chapter 19. For now, you just need to know that using a `!` -means that you’re calling a macro instead of a normal function, and that macros +means that you’re calling a macro instead of a normal function and that macros don’t always follow the same rules as functions. Third, you see the `"Hello, world!"` string. We pass this string as an argument @@ -153,16 +153,16 @@ If you have a C or C++ background, you’ll notice that this is similar to `gcc` or `clang`. After compiling successfully, Rust outputs a binary executable. On Linux, macOS, and PowerShell on Windows, you can see the executable by -entering the `ls` command in your shell. On Linux and macOS, you’ll see two -files. With PowerShell on Windows, you’ll see the same three files that you -would see using CMD. +entering the `ls` command in your shell: ```console $ ls main main.rs ``` -With CMD on Windows, you would enter the following: +On Linux and macOS, you’ll see two files. With PowerShell on Windows, you’ll +see the same three files that you would see using CMD. With CMD on Windows, you +would enter the following: ```cmd > dir /B %= the /B option says to only show the file names =% |