zelda-battery.sh

#!/usr/bin/env zsh
#
# Works best with blinking text; the last heart will blink
# when you have less than 25% of your battery life remaining.

BATTERY="$(pmset -g ps | tail -1 | perl -pe 's/.*?(\d+)%.*/\1/')"

if [[ $BATTERY -lt 25 ]]; then
  echo "\e[5;31m♥\e[0;31m♡♡\e[0m"
elif [[ $BATTERY -lt 50 ]]; then
  echo "\e[31m♥♡♡\e[0m"
elif [[ $BATTERY -lt 75 ]]; then
  echo "\e[31m♥♥♡\e[0m"
else
  echo "\e[31m♥♥♥\e[0m"
fi