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#!/bin/bash
BAT="/sys/class/power_supply/BAT0"
while true; do
percent=$(cat "${BAT}/capacity")
status=$(cat "${BAT}/status")
# Only notify if battery is low AND not charging
if [ "${status}" = "Discharging" ] && [ "${percent}" -lt 7 ]; then
nsend -c "Battery" "Critically low: ${percent}%"
fi
sleep 120
done
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