sync.sh

#!/bin/sh

# -- ********************************************************************************
# -- Description:  Monitoring and sync script for identical remote folders
# -- Version:      0.1
# -- Notes:        Ony the folder on the server on which this script resides incurs
#                  changes. Therefor, we only sync 1 way.
# -- Requires:     incron: sudo apt-cache search incron
#                  using incrontab -e add the following:
#                  /path/to/folder IN_CLOSE_WRITE /path/to/this/scrip.sh $@/$#
# -- ********************************************************************************

KEY=/path/to/key.pem
RUSER=user
RHOST_1=www.example.com
RHOST_2=www.example.net
PATH=/path/to/folder/

RSYNC=/usr/bin/rsync
SSH=/usr/bin/ssh

# Add additional hosts as required
$RSYNC -az -e "$SSH -i $KEY" $PATH $RUSER@$RHOST_1:$PATH
$RSYNC -az -e "$SSH -i $KEY" $PATH $RUSER@$RHOST_2:$PATH