duration.go

// parses arguments into a time duration and prints the number of seconds it represents
package main

import (
	"fmt"
	"os"
	"strings"
	"time"
)

func main() {
	d, err := time.ParseDuration(strings.Join(os.Args[1:], ""))
	if err != nil {
		fmt.Fprintln(os.Stderr, "error parsing duration:", err)
		os.Exit(1)
	}
	fmt.Println(d.Seconds())
}