Configuring Edison Wifi

Hi Intel Edison Community,

I am using Intel Edison to develop my project . I want  to configure Edison Wifi so that it becomes a slave for a particular Network SSID .

I mean in simple code language, it should behave like this:-

     if (Network SSID == "XYZ")

     {

          CONNECT

     }

     else

     {

          SCAN FOR NEARBY DEVICES

     }

Is there any command to do it?

Please help