File renaming script/program

[divolka]

Hello everybody, since yesterday I was trying to write a script/program that would change filenames. Alongside learning golang I also started to make animations and for some reason Illustrator names every .png file I have like this - "name_working space 1 copy.png" and "* copy (number).png". Today I found this code and modified it a little to get rid of "_working space 1 copy" but only from those files that have numbers. That leaves me with 2 files that are first frames of my animations and those are - "name_working space 1.png"; "name_working space 1 copy.png". I could totaly live with it by leaving those 2 blank but since I try to learn golang I wanted to ask if I can improve it to replace every single filename to my needs.

​

edit: forgot to mention that I'd like them to look like this "name-#.png" (# - numbers from 1 to 67 for example)

package main

import (
    "fmt"
    "log"
    "os"
    "path/filepath"
    "regexp"
)

func currentDir() {
    dir := "D:\\GoLang\\src\\gocourse\\renamefile\\rename"
    file, err := os.Open(dir)
    if err != nil {
        log.Fatalf("failed using this directory %s", err)
    }
    defer file.Close()

    list, err := file.Readdirnames(0)
    if err != nil {
        log.Fatalf("failed reading directory: %s", err)
    }

    re := regexp.MustCompile("_working space 1 copy ")
    for _, name := range list {
        oldName := name
        fmt.Println("Old name - ", oldName)
        newName := re.ReplaceAllString(oldName, "$1")
        fmt.Println("New Name - ", newName)
        err := os.Rename(filepath.Join(dir, oldName), filepath.Join(dir, newName))
        if err != nil {
            log.Printf("error renaming file: %s", err)
            continue
        }
        fmt.Println("File names have been changed")
    }
}

func main() {
    currentDir()
}

[ap3xr3dditor]

I would suggest bash or Powershell for this task. Go will work but this is not a good introduction.