Stand up every thirty minutes reminder via i3-nagbar

standup.bash

#!/bin/bash
# Copyright 2017 Taeber Rapczak

# Reminds the user to stand up or sit down on the hour and half-hour
# Uses timer from https://gist.github.com/taeber/20d6b000ae68f5f623f3467233017f34

seconds=$(date +%T | cut -d: -f3)
minutes=$(date +%T | cut -d: -f2)

if [[ $minutes -ne 0 ]] || [[ $seconds -ne 0 ]]
then 
  timer "$(( (59 - $minutes) % 30 ))m $(( (60 - $seconds) % 60 ))"
fi

while true
do
  i3-nagbar -m 'Stand up!' -t warning &
  timer 30m  # sleep for 30 minutes
done