#!/bin/bash

while [[ $# -gt 0 ]]; do
  if sed '/#include/q' "$1" | grep -qi copyright; then
    LINE=$(sed '/#include/q' "$1" | grep -in copyright | cut -d : -f 1 | tail -n1)
  else
    LINE=$(sed '/#include/q' "$1" | grep -in 'GPL\|GNU' | cut -d : -f 1 | tail -n1)
    LINE=$(($LINE - 1))
    sed -i -e "${LINE}a\
\ *
" "$1"
  fi

  sed -i -e "${LINE}a\
\ * Copyright (C) 2018 Razer Inc.
" "$1"
  shift
done