pomodoro_growl.sh

#!/bin/sh

 ##  script POMODORO for OSX!                                                    ##
 #                                                                                #
 #   requires the GNU gdate command to format dates                               #
 #   it's available through macports, in the coreutils package                    #
 #   this script also requires Growl to display notifications                     #
 #                                                                                #
 #   Times are coded as follows:                                                  #
 #     @ long break  : 30 minutes                                                 #
 #     @ short break :  5 minutes                                                 #
 #     @ pomodoro    : 25 minutes, obviously ;)                                   #
 #                                                                                #
 #   by Andrea Schiavini -- fixed up to work by @dangerdave                       #
 ##                                                                              ##

 #  the break function requires an argument: "short" or "long"

function pomo_msg {
	duration=300
	if [ $1 = "long" ]; then
		duration=1800 
	fi
	growlnotify -s -w -m "Pomodoro is over, $1 break" -t "Pomodoro" --image pomo.tif && counter=$(($counter+1))
	echo $(gdate +%Y/%m/%d\ -\ %H:%M)" - pomodoro is over, "$1" break" >> log.txt 
	sleep $duration && growlnotify -s -w -m "Let's go back to work!" -t "Pomodoro" --image pomo.tif	
}

counter=1;
growlnotify -s -w -m "Let's start!" -t "Pomodoro" --image pomo.tif
while true; do 
	echo $(gdate +%Y/%m/%d\ -\ %H:%M)" - pomodoro started" >> log.txt
	sleep 1500 
	if [ $(($counter%5)) -eq 0 ]; then		
		pomo_msg long
	else
		pomo_msg short
	fi 
done