Create a file hello_world.go:

https://codeeval.dev/gist/5648d36550f7592236327e920243f791 main.go

Run it with go run hello_world.go.

go run is useful for ad-hoc execution of single-file program.

You can also create an executable with go build hello_world.go.

On Windows this will create .\\hello_world.exe executable.

On every other OS this will create ./hello_world executable.