Try Hello World of Go in 3min

$ brew install go==> Downloading https://homebrew.bintray.com/bottles/go-1.6.el_capitan.bottle.2.######################################################################## 100.0%==> Pouring go-1.6.el_capitan.bottle.2.tar.gz==> CaveatsAs of go 1.2, a valid GOPATH is required to use the `go get` command:  https://golang.org/doc/code.html#GOPATHYou may wish to add the GOROOT-based install location to your PATH:  export PATH=$PATH:/usr/local/opt/go/libexec/bin==> Summary  /usr/local/Cellar/go/1.6: 5,771 files, 324.9M

package mainimport "fmt"func main() {  fmt.Printf("Hello, world!
")}

$ go run hello.go