package main

import (
	"bufio"
	"fmt"
	"os"
)

// https://golangr.com/file-exists

func main() {
	if len(os.Args) < 2 {
		fmt.Println("Not enough arguments")
		os.Exit(1)
	}

	for i := 1; i < len(os.Args); i++ {
		if _, err := os.Stat(os.Args[i]); err == nil {
			reader(os.Args[i])
		} else {
			fmt.Printf("File does not exist\n")
		}
	}
}

func reader(file string) {
	fil, err := os.Open(file)
	if err != nil {
		panic(err)
	}
	defer fil.Close()

	scanner := bufio.NewScanner(fil)
	for scanner.Scan() {
		fmt.Println(scanner.Text())
	}

	if err := scanner.Err(); err != nil {
		fmt.Println(err)
	}
}