clean up scripts

.config/polybar/scripts/info-usbtoserial.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+usbtoserial_print() {
+    devices=$(find /dev/ -name "ttyUSB*")
+
+    counter=0
+    for device in $devices; do
+        device_name=$(udevadm info --query=property --export --name "$device" | grep ID_MODEL_FROM_DATABASE | cut -d "'" -f 2 | cut -d ' ' -f 1)
+
+        if [ $counter -gt 0 ]; then
+            printf ", %s" "$device_name"
+        else
+            printf "#1 %s" "$device_name"
+        fi
+
+        counter=$((counter + 1))
+    done
+
+    printf '\n'
+}
+
+path_pid="/tmp/polybar-usbtoserial.pid"
+
+case "$1" in
+    --update)
+        pid=$(cat $path_pid)
+
+        if [ "$pid" != "" ]; then
+            kill -10 "$pid"
+        fi
+        ;;
+    *)
+        echo $$ > $path_pid
+
+        trap exit INT
+        trap "echo" USR1
+
+        while true; do
+            usbtoserial_print
+
+            sleep 30 &
+            wait
+        done
+        ;;
+esac