first uninstall script

uninstall_instance.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+if (( $EUID != 0 )); then
+    echo "Please run as root (sudo)"
+    exit
+fi
+
+if [ $SUDO_USER ]; then user=$SUDO_USER; fi
+echo 'Do not remove the generic instance!'
+PS3='Select instance to remove: '
+readarray -t options < <(cat /etc/octoprint_instances | sed -n -e 's/^instance:\([[:alnum:]]*\) .*/\1/p')
+select opt in "${options[@]}"
+do
+    echo "Selected instance: $opt"
+    break
+done
+
+read -p "Do you want to remove everything associated with this instance?" -n 1 -r
+echo    #new line
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+   #disable and remove service file
+   if [ -f /etc/systemd/system/$opt.service ]; then
+      systemctl stop $opt.service
+      systemctl disable $opt.service
+      rm /etc/systemd/system/$opt.service
+   fi
+   
+   if [ -f /etc/systemd/system/cam_$opt.service ]; then
+      systemctl stop cam_$opt.service
+      systemctl disable cam_$opt.service
+      rm /etc/systemd/system/cam_$opt.service
+      sed -i "/cam_$opt/d" /etc/udev/rules.d/99-octoprint.rules
+   fi
+   #remove udev entry
+   sed -i "/$opt/d" /etc/udev/rules.d/99-octoprint.rules
+   #remove files
+   rm -rf /home/$user/.$opt
+   #remove from octoprint_instances
+   sed -i "/$opt/d" /etc/octoprint_instances
+fi