Files
learngo/x-tba/slices/19-empty-file-finder-project/2nd-version-writing-to-a-file/main.go
2019-01-29 19:43:12 +03:00

51 lines
846 B
Go

// For more tutorials: https://blog.learngoprogramming.com
//
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
package main
import (
"fmt"
"io/ioutil"
"os"
)
func main() {
args := os.Args[1:]
if len(args) == 0 {
fmt.Println("Provide a directory")
return
}
files, err := ioutil.ReadDir(args[0])
if err != nil {
fmt.Println(err)
return
}
var names []byte
for _, file := range files {
if file.Size() == 0 {
name := file.Name()
names = append(names, name...)
names = append(names, '\n')
}
}
err = ioutil.WriteFile("out.txt", names, 0644)
if err != nil {
fmt.Println(err)
return
}
fmt.Printf("%s", names)
}
// See: https://www.tutorialspoint.com/unix/unix-file-permission.htm
// See: http://permissions-calculator.org/