IR Serial Port Reader Arduino

#!/bin/bash

screen /dev/ttyUSB0 115200 & sleep .5;
killall screen;
clear

echo "Waiting for Button Press..."
stty raw -echo < /dev/ttyUSB0;
cat /dev/ttyUSB0|while read line;
do
  #echo "$line"
  if [[ "$line" == "FFA05F"* ]]
  then
    echo "Off"
    espeak "Off Button Pressed."
  elif [[ "$line" == "FF807F"* ]]
  then
    echo "On"
    espeak "On Button Pressed"
  fi
done