akkustatus.sh Conky

#!/bin/bash

current=$(grep remaining /proc/acpi/battery/BAT0/state | tr -d A-z | tr -d " " | tr -d :)
total=$(grep "design capacity:" /proc/acpi/battery/BAT0/info | tr -d A-z | tr -d " " | tr -d :)
rate=$(grep "present rate:" /proc/acpi/battery/BAT0/state | tr -d A-z | tr -d " " | tr -d :)

percent=$(bc << EOF
100.0 * $current / $total
EOF
)

if [ $rate -eq  0 ]; then
	echo $percent'%, charging'
else
	hours=$(bc << EOF
	(1.0*$current) / (1.0*$rate)
EOF
	)
	minutes=$(bc << EOF
	60.0 * $current / $rate - $hours * 60
EOF
	)
	echo $percent'%, '$hours':'$minutes
fi