Write your First Application (Hello World) with Go

1. Create a folder anywhere you like and call it anything you want. I called it helloworld-basic and you can find it in this repository:
   https://github.com/gotutorial/helloworld.git
2. Create a file with the extension of .go. You can give any name to that file. I named it main.go.
3. Add following lines in main.go file

   package main
   
   import "fmt"
   
   func main() {
     fmt.Println("Hello World")
   }

4. You can run your first Go Hello World application simply using go run command and you should be able to see “Hello World” text below your command execution.

   $ go run main.go
   Hello World
   

5. You can also build an standalone executable file of your application using following command and run it.

   $ go build main.go

   You should be able to find an execution file with the same name main without any extension along with your main.go file:

   $ ls
   main  main.go
   

   And run the executable file like this:

   $ ./main
   Hello World