battery.sh

battery.sh

#!/bin/sh

current=`grep "remaining" /proc/acpi/battery/*/state | sed 's/[a-zA-Z: ]//g'`
total=`grep "design capacity:" /proc/acpi/battery/*/info | sed 's/[a-zA-Z: ]//g'`
rate=`grep "present rate:" /proc/acpi/battery/*/state | sed 's/[a-zA-Z: ]//g'`
charging=`grep "charging state:" /proc/acpi/battery/*/state | sed 's/[a-zA-Z ]*:[ ]*//g'`

if [ $rate -eq 0 ]; then
        echo $charging
        exit 0
fi

percent=`echo "100.0 * $current / (1.0*$total)" | bc`
hours=`echo "(1.0*$current) / $rate" | bc`
minutes=`echo "60.0 * $current / $rate - $hours * 60" | bc`
minutes_0=``

if [ $minutes -lt 10 ]; then
        minutes_0=0
fi

echo ''$charging' '$percent'% '$hours':'$minutes_0$minutes