package main   import ( "path/filepath" "os" "flag" "fmt" "time" )   const ( IsDirectory = iota IsRegular IsSymlink )   type sysFile struct { fType int fName string fLink string fSize int64 fMtime time.Time fPerm os.FileMode }   type F struct { files []*sysFile }   func (self *F) visit(path string, f os.FileInfo, err error) error { if ( f == nil ) { return err } var tp int if f.IsDir() { tp = IsDirectory }else if ( f.Mode() & os.ModeSymlink ) > 0 { tp = IsSymlink }else{ tp = IsRegular } inoFile := &sysFile{ fName : path, fType : tp, fPerm : f.Mode(), fMtime: f.ModTime(), fSize : f.Size(), } self.files = append( self.files, inoFile ) return nil }     func main() { flag.Parse() root := flag.Arg(0) self := F{ files: make( []*sysFile, 0 ), } err := filepath.Walk(root, func(path string, f os.FileInfo, err error) error { return self.visit(path, f, err) })   if err != nil { fmt.Printf("filepath.Walk() returned %v\n", err) }   for _, v := range self.files { fmt.Println( v.fName,v.fSize ) } } //go/5660