#!/bin/sh

# Sleep seconds
timer="60"

# Main loop
while true; do

    # vars
    used_space=$(btrfs filesystem usage / 2> /dev/null | awk '{if ( /Used:/ ) { print $2 } } ' | head -n1)
    all_space=$(btrfs filesystem usage / 2> /dev/null | awk '{if ( /Device size:/ ) { print $3 } } ' | head -n1 | tr -d "GiB")
    

  # Check space available (4) and percentage used (5)
  spaceperc=$(echo "$(echo "$used_space" | tr -d "GiB" )"  "$all_space"  | awk '{div=$1/$2;div *= 100; printf"%2d%%\n",div }')

  echo "diskspace|string|$used_space"
  echo "diskperc|string|$spaceperc"
  echo ""
  sleep $timer

done