#!/bin/bash
START=$2
if [ ! $START ]; then
    START=1;
fi
tail -n +$START $1 | head -1 > $1.headers
echo "wrote $1.headers (line $START)"
tail -n +`expr $START + 1` $1 > $1.no_headers
echo "wrote $1.no_headers (after line $START)"
if [ "$START" -gt "1" ]; then
    tail -n +$START $1 > $1.with_headers
    echo "wrote $1.with_headers (starting with line $START)"
fi