Golang : Read directory content with filepath.Walk()

Golang's filepath.Walk function allow a program to traverse a directory content and tree with ease. In this tutorial, we will see how to read a directory and display its content name with file size. This example will use the http://golang.org/pkg/path/filepath/#Walk function. readdirwalk.go package main import ( "path/filepath" "os" "flag" "fmt" ) func walkpath(path string, f os.FileInfo, err error) error { fmt.Printf("%s with %d bytes\n", path,f.Size()) return nil func main() { flag.Parse() root := flag.Arg(0) // 1st argument is the directory location filepath.Walk(root, walkpath) execute go run readdirwalk.go ./ and see how it goes. You can change to different directory and test out the output as well. Hope this tutorial is helpful to you.