#!/bin/zsh
# Convert Flipper's NFC file to Proxmark3 compatible file
set -eu

if ! [ $# -eq 2 ]
  then
      echo "usage: $0 <input.nfc> <output.bin>"
      exit 1
fi

local F=$1
local O=$2

grep -E '^Block [0-9]{1,2}:' $F | sed -e 's/ //g' -e 's/.*://' | head -c -1 | xxd -ps -c16 -u -r > $F.bin