batterymon.sh


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#!/bin/bash
# Copyright (C) 2011, 2013 Luke Shumaker <lukeshu@sbcglobal.net>

if [[ $# -ne 2 ]]; then
	echo "Usage: $0 THRESHOLD COMMAND"
fi

thresh=$1
cmd=$2

while true; do
	num=`acpi|sed -nr '/Discharging/s/.*, ([0-9]*)%,.*/\1/p'`
	num=${num:-100}
	if (( "$num" < "$thresh" )); then
		eval "$cmd"
	else
		sleep 1
	fi
done