#!/bin/sh

data()
{
    echo -n "foobar" >> "$1"
}

hole()
{
    truncate --size +10240 "$1"
}


touch test.empty

data test.data

hole test.hole

data test.data-hole
hole test.data-hole

hole test.hole-data
data test.hole-data

data test.data-hole-data
hole test.data-hole-data
data test.data-hole-data

hole test.hole-data-hole
data test.hole-data-hole
hole test.hole-data-hole