Macbook電池切れることを防ぐ.sh

#!/bin/sh

if ( pmset -g batt | head -n 1 | grep 'AC Power' ); then
    exit 0
fi

battery_percent=$(pmset -g batt|grep InternalBattery | awk '{print $3}' | sed -e 's/%.*//')
battery_low=60 

if [ $battery_percent -lt $battery_low ]; then
    osascript -e 'display notification "電源が足りない!"'
fi

## crontab -e
## * * * * * hoge/fuga.sh