yukkuri2.go

package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"strings"
)

func downloader(url string) {
	tmp := strings.Split(url, "/")
	fileName := tmp[len(tmp)-1]

	resp, err := http.Get(url)
	if err != nil {
		fmt.Println(err)
		return
	}
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		fmt.Println(err)
		return
	}

	ioutil.WriteFile(fileName, body, 0644)
}

func main() {
	// url := "http://yukkurisinai.net/gopher.png"
	for _, url := range os.Args[1:] {
		downloader(url)
	}
}