#!/bin/sh

for i
do
	awk '
function check(line, pat)
{
	if (line ~ pat)
		return 1;
	print line;
	return 0;
}

BEGIN {
	ok = 1;
}
{
	if (NR > 5 || !ok) {
		print $0;
		next;
	}
	if (NR == 1) {
		ok = check($0, ".*<<<<.*")
		next;
	}
	if (NR == 2) {
		ok = check($0, ".*NetBSD:.*")
		next;
	}
	if (NR == 3) {
		ok = check($0, ".*====.*")
		next;
	}
	if (NR == 4) {
		ok = check($0, ".*NetBSD:.*")
		print $0;
		next;
	}
	if (NR == 5) {
		ok = check($0, ".*>>>>.*")
		next;
	}
}' $i > tmp$$ && mv tmp$$ $i
done