#!/bin/bash
main_disk=$(df -h / | awk 'NR==2 {print $3 "/" $2}')
hdd_disk=$(df -h /mnt/hdd 2>/dev/null | awk 'NR==2 {print $3 "/" $2}')
echo "{\"text\":\" ${main_disk} / ${hdd_disk:-N/A}\",\"tooltip\":\"Disk Usage\"}"