power menu, redshift, polybar

.config/polybar/scripts/updates-apt/README.md

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+# Script: updates-apt
+
+A script that shows if there are updates available through the apt package manager on Ubuntu and Debian-based systems.
+
+
+## Module
+
+```ini
+[module/updates-apt]
+type = custom/script
+exec = ~/polybar-scripts/updates-apt.sh
+interval = 600
+```

.config/polybar/scripts/updates-apt/updates-apt.sh

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+#!/bin/sh
+
+updates=$(apt list --upgradable 2> /dev/null | grep -c upgradable);
+
+if [ "$updates" -gt 0 ]; then
+    echo "# $updates"
+else
+    echo ""
+fi