Go

brew install go

Tools

go build, which builds Go binaries using only information in the source files themselves, no separate makefiles
go test, for unit testing and microbenchmarks
go fmt, for formatting code
go get, for retrieving and installing remote packages
go vet, a static analyzer looking for potential errors in code
go run, a shortcut for building and executing code
godoc, for displaying documentation or serving it via HTTP
gorename, for renaming variables, functions, and so on in a type-safe way
go generate, a standard way to invoke code generators

package main

import "fmt"

func main() {
    fmt.Println("Hello, world!")
}

where "fmt" is the package for formatted I/O, similar to C's C file input/output.^[1]

↑ "fmt - The Go Programming Language". golang.org. Retrieved 2019-04-08.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>