Starting with Hello World
This wouldn't be a good book without a Hello World example. Our Hello World example can't be simpler, open your favorite text editor and create a file called main.go within our $GOPATH/src/[your_name]/hello_world with the following content:
package main
func main(){
println("Hello World!")
}
Save the file. To run our program, open the Terminal window of your operating system:
In Linux, go to programs and find a program called Terminal.
In Windows, hit Windows + R, type
cmdwithout quotes on the new window and hit Enter.In Mac OS X, hit Command + Space to open a spotlight search, type
terminalwithout quotes. The terminal app must be highlighted so hit Enter.
Once we are in our terminal, navigate to the folder where we have created our main.go file. This should be under your $GOPATH/src/[your_name]/hello_world and execute it:
go run main.go Hello World!
That's all. The go run [file] command will compile and execute our application but it...
