botb/main.go

package main

import (
	"flag"
	"fmt"
	"os"
)

var vers = flag.Bool("version", false, "print version")

func main() {
	flag.Parse()

	if *vers {
		fmt.Println("2.02.0")
		os.Exit(0)
	}

	switch arg := flag.Arg(0); arg {
	case "when":
		fmt.Println("April 15th, 2020, 7-11PM")
	case "where":
		fmt.Println("Art Boutiki\n44 Race St.\nSan Jose, CA")
	case "who":
		fmt.Println("Employees on stage\nFriends/family in the audience")
	case "fineprint":
		when := "February 3rd"
		fmt.Printf("8 bands\n$100/band\nsignup begins %v\nPayment due at signup\n", when)
	default:
		fmt.Fprintf(os.Stderr, "botb: unknown subcommand %v\n", arg)
		os.Exit(1)
	}
}