Debugging in eclipse with real Android phone on ubuntu

First open your device terminal

 1)on the top left hand corner in Application ->Accessories->terminal

 2) on terminal window type following commands

 $ sudo su then press enter after that terminal want password which  

   is set by you in  installation or giving at the time of logging.

 
 $<Enter password> password is not shown but it is type 

      internally you can just type whole password 
   $ mkdir ~/.android

   $vi ~/.android/adb_usb.ini
   press ctri+z here
   $ echo "0x0451" > ~/.android/adb_usb.ini
   $cat /root/.android/adb_usb.ini
    $sudo mount -t usbfs none /proc/bus/usb
   $cd path of android sdk tools from home
     like /home/tv-014/Desktop/newandroid/android-sdk-linux/platform-tools
   in my system i have put android-sdk-linux at desktop and in it one 

    platform-tools 
   folder contain the adb.exe file
   so after cd command we have the path from home to platform-tools folder.
    $ ./adb kill-server
    $ ./adb start-server
    $ ./adb devices

now you got the list of devices attached to your system