file

func DirSize(dirName string) (int64, error)

func Dump(fileName string, content []byte) error

func Exists(path string) bool

func IsDir(path string) bool

func IsFile(path string) bool

func List(dirName string) ([]os.FileInfo, error)

func Load(fileName string) ([]byte, error)

func Mkdir(dirName string, perm os.FileMode) error

func Remove(fileName string) error

func Touch(fileName string, perm os.FileMode) error

func WriteFile(fileName, content string, perm os.FileMode) error