libio/dbz/revbytes

NR == 1 {
	printf "%s %s %s %s %s %s %s %s %s", $1, $2, $3, $4, $5, $6, $7, $8, $9
	for (i = NF; i > 9; i--)
		printf " %s", $i
	printf "\n"
}
NR > 1 { print }