#!/bin/sh

if [ "$1" = "" ]; then
	echo "usage: 2fdsplit filename"
fi

suf=0
while true; do
	dd if="$1" of="$1".$suf bs=1440k count=1 skip=$suf conv=sync 2>&1 \
		| fgrep -q "0+1" && break
	suf=`expr $suf + 1`
done