Simple script utilizing rsync to sync two directories.

mirror.sh

#!/bin/bash

set -e

read -e -p "Source Directory [./]: " SOURCE
SOURCE=${SOURCE:-./}
read -e -p "Destination Directory [../Mirror]: " DEST
DEST=${DEST:-../Mirror}

if [ $# -eq 0 ] || [ -z $1 ]
then
	rsync -ai --delete --exclude={"/.*","/mirror.sh"} "${SOURCE}" "${DEST}"
elif [ $# -eq 1 ] && [ "$1" = "--dry-run" ]
then
	echo "*** DRY RUN ***"
	rsync -ain --delete --exclude={"/.*","/mirror.sh"} "${SOURCE}" "${DEST}"
else
	echo "Unknown argument(s): ${@}"
	exit 1
fi

exit 0