power menu, redshift, polybar

.config/polybar/scripts/system-fan-speed/README.md

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+# Script: system-fan-speed
+
+A shell script which displays the fan speed.
+
+
+## Dependencies
+
+* `lm_sensors`
+* `bc`
+
+
+## Module
+
+```ini
+[module/system-fan-speed]
+type = custom/script
+exec = ~/polybar-scripts/system-fan-speed.sh
+interval = 10
+```

.config/polybar/scripts/system-fan-speed/system-fan-speed.sh

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+#!/bin/sh
+
+speed=$(sensors | grep fan1 | awk '{print $2; exit}')
+
+if [ "$speed" != "" ]; then
+    speed_round=$(echo "$speed/1000" | bc -l | LANG=C xargs printf "%.1f\n")
+    echo "# $speed_round"
+else
+   echo "#"
+fi