--- File.ftype(filename)

    եΥפɽʸ֤ޤʸϰʲΤΤ
    ǤFile.lstat(filename).ftype [File::Stat/ftype] Ʊ
    (ܥå󥯤Ф "link" ֤ޤ)

      "file"
      "directory"
      "characterSpecial"
      "blockSpecial"
      "fifo"
      "link"
      "socket"

      "unknown"

