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#!/bin/sh
battery="BAT0"
# make sure the system actually has a battery to track
if [ ! -d /sys/class/power_supply/$battery ] ; then
echo "N/A"
exit 0
fi
capacity=$(cat /sys/class/power_supply/$battery/capacity)
cycles=$(cat /sys/class/power_supply/$battery/cycle_count)
status=$(cat /sys/class/power_supply/$battery/status)
[ -z $capacity] && echo "N/A" || echo $capacity"%" "("$status")"
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