#!/bin/bash

RSYNC=$1
if [ -z "$RSYNC" ]; then
    RSYNC=/home/wayne/src/rsync/rsync
fi

if [ ! -d /tmp/X1/data ];then
    mkdir -p /tmp/X1/data
    cd /tmp/X1/data
    for file in {1..100}; do dd if=/dev/zero of=./$file bs=1k count=16; done
fi

cd /tmp/X1

for num in {1..9}; do
    if [ ! -d data_hl$num ]; then
	rsync -av --hard-links --link-dest=/tmp/X1/data/ data/ data_hl$num/
    fi
done

cd /tmp # without this, there are no errors (unless /tmp/X2 exists).

$RSYNC -av --hard-links --dry-run /tmp/X1/ /tmp/X2/