Simple shell script that checks the current cheerlights color

cheerlights.sh

#! /bin/sh

current_color=''
last_color=''

while :;
do
  current_color=`curl -s 'http://api.thingspeak.com/channels/1417/field/1/last.txt'`

  if [ "$current_color" != "$last_color" ]
  then
    last_color=$current_color
    case $current_color in
      'red'       ) echo 'r' ;; #FF0000
      'green'     ) echo 'g' ;; #008000
      'blue'      ) echo 'b' ;; #0000FF
      'cyan'      ) echo 'c' ;; #00FFFF
      'white'     ) echo 'w' ;; #FFFFFF
      'warmwhite' ) echo 'x' ;; #FDF5E6
      'purple'    ) echo 'p' ;; #800080
      'magenta'   ) echo 'm' ;; #FF00FF
      'yellow'    ) echo 'y' ;; #FFFF00
      'orange'    ) echo 'o' ;; #FFA500
    esac
  fi

  sleep 1
done