Rust: Write and Run Hello World! Program Example

1. Open a Text Editor (Notepad/Notepad++/TextEdit or Sublime based on your OS).
2. Write the following to it.

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

3. Save the file as main.rs

Steps to Run the "Hello World!" Rust Program

1. Open Terminal (if on Mac/Linux/Ubuntu) or Command Prompt (if on Windows)
2. Move to the location where you have created the main.rs file.
3. Run the command: rustc main.rs to compile our "Hello World!" program.

   rustc main.rs

4. Finally, we are good to run our program,

   ./main

Output:

Hello World!