add scripts, mostly taken from LARBS

.local/bin/cron/batterynotify

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+#export DISPLAY=:0
+export $(grep -z DBUS_SESSION_BUS_ADDRESS /proc/$(pgrep -u "$USER" -o startx)/environ | xargs -0)
+
+# Battery percentage at which to notify
+WARNING_LEVEL=30
+CRITICAL_LEVEL=10
+
+#BATTERY_LEVEL=$(<"/sys/class/power_supply/BAT0/capacity")
+#BATTERY_DISCHARGING=$([[ $(<"/sys/class/power_supply/BAT0/status") == "Discharging" ]] && echo 1 || echo 0)
+# Using acpi
+BATTERY_DISCHARGING=$(acpi -b | grep "Battery 0" | grep -c "Discharging")
+BATTERY_LEVEL=$(acpi -b | grep "Battery 0" | grep -P -o '[0-9]+(?=%)')
+
+# Use temporary files to store whether a notification has already been shown (to prevent multiple notifications)
+CRIT_FILE=/tmp/battery_crit
+WARN_FILE=/tmp/battery_warn
+FULL_FILE=/tmp/battery_full
+
+# Reset notifications if the battery is charging/discharging
+if [ "$BATTERY_DISCHARGING" -eq 1 ] && [ -f $FULL_FILE ]; then
+    rm $FULL_FILE
+elif [ "$BATTERY_DISCHARGING" -eq 0 ]; then
+	if [ -f $WARN_FILE ]; then
+		rm $WARN_FILE
+	fi
+	if [ -f $CRIT_FILE ]; then
+		rm $CRIT_FILE
+	fi
+fi
+
+# If the battery is charging and is full (and has not shown notification yet)
+if [ "$BATTERY_LEVEL" -gt 95 ] && [ "$BATTERY_DISCHARGING" -eq 0 ] && [ ! -f $FULL_FILE ]; then
+    notify-send "Battery Full" "Battery is fully charged." -t 1500
+    touch $FULL_FILE
+# If the battery is low and is not charging (and has not shown notification yet)
+elif [ "$BATTERY_LEVEL" -le $CRITICAL_LEVEL ] && [ "$BATTERY_DISCHARGING" -eq 1 ] && [ ! -f $CRIT_FILE ]; then
+    notify-send "⚠️ Critical Battery Level" "${BATTERY_LEVEL}% of battery remaining." -u critical -r 9991 -t 5000
+    # uncomment the line below if you want to get notified at most once
+    #touch $WARN_FILE
+elif [ "$BATTERY_LEVEL" -le $WARNING_LEVEL ] && [ "$BATTERY_DISCHARGING" -eq 1 ] && [ ! -f $WARN_FILE ]; then
+    notify-send "Low Battery" "${BATTERY_LEVEL}% of battery remaining." -u critical -r 9991 -t 1500
+    # uncomment the line below if you want to get notified at most once
+    #touch $WARN_FILE
+fi