#!/usr/bin/env bash
# USAGE: ./unitylevel.sh line [dir]

LINE="$1"
DIR=${2+"$(realpath $2)/"};

clear;
for i in $(ls ${DIR}level* | awk '{ print substr($1, 6, length($1)) }' | sort -n); do
  echo -n "${LINE}:level${i} "
  if [[ $i -lt 10 ]]; then
    echo -n ' '
  fi;

  hexyl "level$i"               \
    | head -n $(( "$LINE" + 1 )) \
    | tail -n 1
done