Linux script to follow pomodoro style of work and break.

pomodoro.sh

#!/bin/sh
% add @reboot work/tools/scripts/pomodoro.sh to crontab -e
% or add to sudo nano /etc/rc.local
% or add to "Run at startup" in Ubuntu

study_time_sec="1500"; % in seconds
break_time_sec="300"; % in seconds

% Produced an alarm
_alarm() {
  ( \speaker-test --frequency $1 --test sine )&
  pid=$!
  \sleep 0.${2}s
  \kill -9 $pid
}

study=true;
while true;
do
    if $study ; then
        study=false;
        notify-send "Come on! Get to work!";
        _alarm 100 200;
        _alarm 200 200;
        _alarm 300 200;
        sleep $study_time_sec;
    else
        study=true;
        notify-send "Its time to take some rest";
        _alarm 400 200;
        _alarm 500 200;
        sleep $break_time_sec;
    fi
done