Small program to read a file and use youtube-dl to download the urls contained in it

ytdw.go

package main

import (
	"fmt"
	"io/ioutil"
	"os/exec"
	"strings"
)

func check(e error) {
	if e != nil {
		panic(e)
	}
}

func get_file_lines(filename string) []string {
	dat, err := ioutil.ReadFile(filename)
	check(err)

	return strings.Split(string(dat), "\n")
}

func download_video(video string) {
	cmd := exec.Command("youtube-dl", video)
	fmt.Println("++ About to download the following video:", video)
	out, err := cmd.Output()
	check(err)
	fmt.Println(string(out))
	fmt.Println("-- Download finished")
}

func download_videos(videos []string) {
	for _, video := range videos {
		download_video(video)
	}
}

func main() {

	videos := get_file_lines("videos.txt")
	download_videos(videos)

}