check parrot OS network connection, create missing file and retest network connection.

check_net

#!/bin/bash

clear
while :; do
  ping -c1 google.com
  if [[ $? -eq 0 ]]; then
    echo "Connected!"
    break
  else
    clear
    date
    if ! [[ -f "/run/systemd/resolve/stub-resolv.conf" ]]; then
      echo -e "\033[0;31mAttempting to create file.\033[0m\n"
      if [[ -e "/run/systemd/resolve/" ]]; then
        sudo rm -rf /run/systemd/resolve/
        if [ $? -eq 0 ]; then
          echo "Removed previously created directory."
          echo
        else
          echo "Unable to remove previous directory....."
          echo
        fi
      fi
      sudo mkdir -p /run/systemd/resolve/
      sudo echo -e "search local\nnameserver 1.1.1.1\nnameserver 1.0.0.1" > /run/systemd/resolve/stub-resolv.conf
      if [ $? -eq 0 ]; then
        echo "File created!"
        echo
        file /run/systemd/resolve/stub-resolv.conf
      else
        echo -e "\033[0;31mFile creation failed!!!\033[0m"
        echo
      fi
    else
      echo "File exists, not sure why there is no internet. Check host system to ensure that the host has actual internet connection."
    fi
  fi
  sleep 1
done

this script can only be run as the root user. sudo will not allow you to write to that directory.