Simplest script that auto-syncs a folder to a remote destination

simple-sync.bash

#!/bin/bash

# Args: source destination
# Needs rsync and inotify-tools
# Hidden files and folders are excluded via regex (inotifywait) and patterns (rsync)

while true; do
  rsync -avz --exclude ".*" --exclude ".*/" $1 $2
  inotifywait -r -e modify,attrib,close_write,move,create,delete --exclude="\/\." $1
done