Listing a directory

This recipe will show you how to list directory content.

How to do it...

1. Open the console and create the folder chapter06/recipe05.
2. Navigate to the directory.
3. Create a directory named folder.
4. Create the listdir.go file with the following content:

        package main

        import (
          "fmt"
          "io/ioutil"
          "os"
          "path/filepath"
        )

        func main() {

          fmt.Println("List by ReadDir")
          listDirByReadDir(".")
          fmt.Println()
          fmt.Println("List by Walk")
          listDirByWalk(".")
        }

        func listDirByWalk(path string) {
          filepath.Walk(path, func(wPath string, info os.FileInfo,
                                   err error) error {

          // Walk the given dir
          // without printing out.
          if wPath == path {
            return nil
          }

          // If given path is folder
          // stop list recursively and print as folder.
          if info.IsDir(...