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#!/bin/sh
# Prints all batteries, their percentage remaining and an emoji corresponding
# to charge status (🔌 for pluged up, 🔋 for discharging on battery, etc.).
case $BLOCK_BUTTON in
3) pgrep -x dunst >/dev/null && notify-send "🔋 Battery module" "🔋: discharging
🛑: not charging
♻: stagnant charge
🔌: charging
⚡: charged
❗: battery very low!" ;;
esac
# Loop through all attached batteries.
for battery in /sys/class/power_supply/BAT?
do
# Get its remaining capacity and charge status.
capacity=$(cat "$battery"/capacity) || exit
status=$(cat "$battery"/status)
# If it is discharging and 20% or less, we will add a ❗ as a warning.
[ "$status" = "Discharging" ] && echo "$capacity" | grep -q "^[12][0-9]$" && warn="❗"
# Print the battery status (replaced by a cooresponding emoji with
# sed), the percentage left and the warning if there is one.
printf "%s%s%s\n" "$(echo "$status" | sed "s/,//;s/Discharging/🔋/;s/Not charging/🛑/;s/Charging/🔌/;s/Unknown/♻️/;s/Full/⚡/;s/ 0*/ /g;s/ :/ /g")" "$warn" "$(echo "$capacity" | sed -e 's/$/%/')"
unset warn
done
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