golang_flag.go

package main

import (
	"flag"
	"fmt"
)

func main() {

	wordPtr := flag.String("word", " foo ", "a string")
	numbPtr := flag.Int("numb", 42, "an int")
	boolPtr := flag.Bool("fork", false, "a bool")

	var svar string
	flag.StringVar(&svar, "svar", "bar", "a string var")

	flag.Parse()

	fmt.Println("word", *wordPtr)
	fmt.Println("numb", *numbPtr)
	fmt.Println("fork", *boolPtr)
	fmt.Println("svar", svar)
	fmt.Println("tail", flag.Args())
}