#!/bin/bash
# Simple SHELL script for system check by ping command

# add ip / hostname separated by white space
HOSTS="localhost 192.168.1.2"

# no ping request
COUNT=1

# perform action
for myHost in $HOSTS
do
  ping -c 1 $myHost > /dev/null
  if [ $? -eq 0 ]; then
    # 100% failed
    echo "Host : $myHost is down"
  else
	# 100% succes
	<place rsync rules here>
  fi
done