#!/usr/bin/env bash
is_mounted=false

if mount | grep -qs sda1
then
  echo "sda1 is mounted. Type <u> to unmount; Enter to quit. "
  is_mounted=true

else
  echo "sda1 is not mounted. Type <m> to mount; Enter to quit. "
fi

read choice

if [[ $choice == "u" ]] && [[ "$is_mounted" == true ]]
then
  if sudo umount /dev/disk/by-uuid/<here_goes_uuid>
  then
    echo "ESP unmounted."
    sleep 0.4
  fi

elif [[ $choice == "m" ]] && [[ "$is_mounted" == false ]]
then
  if sudo mount /dev/disk/by-uuid/<here_goes_uuid>
  then
    echo "ESP mounted."
    sleep 0.4
  fi

fi