power menu, redshift, polybar

.config/polybar/scripts/battery-combined-shell/README.md

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+# Script: battery-combined-shell
+
+A shell script that shows the battery status.
+
+It supports two rechargeable batteries and changing icons. It works even if only one battery is used.
+
+
+## Module
+
+```ini
+[module/battery-combined-shell]
+type = custom/script
+exec = ~/polybar-scripts/battery-combined-shell.sh
+interval = 10
+```

.config/polybar/scripts/battery-combined-shell/battery-combined-shell.sh

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+#!/bin/sh
+
+PATH_AC="/sys/class/power_supply/AC"
+PATH_BATTERY_0="/sys/class/power_supply/BAT0"
+PATH_BATTERY_1="/sys/class/power_supply/BAT1"
+
+ac=0
+battery_level_0=0
+battery_level_1=0
+battery_max_0=0
+battery_max_1=0
+
+if [ -f "$PATH_AC/online" ]; then
+    ac=$(cat "$PATH_AC/online")
+fi
+
+if [ -f "$PATH_BATTERY_0/energy_now" ]; then
+    battery_level_0=$(cat "$PATH_BATTERY_0/energy_now")
+fi
+
+if [ -f "$PATH_BATTERY_0/energy_full" ]; then
+    battery_max_0=$(cat "$PATH_BATTERY_0/energy_full")
+fi
+
+if [ -f "$PATH_BATTERY_1/energy_now" ]; then
+    battery_level_1=$(cat "$PATH_BATTERY_1/energy_now")
+fi
+
+if [ -f "$PATH_BATTERY_1/energy_full" ]; then
+    battery_max_1=$(cat "$PATH_BATTERY_1/energy_full")
+fi
+
+battery_level=$(("$battery_level_0 + $battery_level_1"))
+battery_max=$(("$battery_max_0 + $battery_max_1"))
+
+battery_percent=$(("$battery_level * 100"))
+battery_percent=$(("$battery_percent / $battery_max"))
+
+if [ "$ac" -eq 1 ]; then
+    icon="#1"
+
+    if [ "$battery_percent" -gt 97 ]; then
+        echo "$icon"
+    else
+        echo "$icon $battery_percent %"
+    fi
+else
+    if [ "$battery_percent" -gt 85 ]; then
+        icon="#21"
+    elif [ "$battery_percent" -gt 60 ]; then
+        icon="#22"
+    elif [ "$battery_percent" -gt 35 ]; then
+        icon="#23"
+    elif [ "$battery_percent" -gt 10 ]; then
+        icon="#24"
+    else
+        icon="#25"
+    fi
+
+    echo "$icon $battery_percent %"
+fi