How setup hidden SSID on Raspberry PI

This article show how configure interface wlan to connect hidded SSID,we go edit only the file interface on directory /etc/network.
Now open your favorite editor for configuring the file interfaces, follow the path /etc/network/interfaces. Is a good ideia make backup this archive, because if wrong edit, you go have problem for connect your network. After you make backup, edit the last line:
 auto wlan0
allow-hotplub wlan0
iface wlan0 inet dhcp
      wpa-ssid "your SSID"
      wpa-psk "Your password for connect to network"

Now reboot your raspberry PI and check your ip in wlan.