update_and_sync.sh

# bash update_and_sync.sh /tmp/test/ [email protected] /tmp/test/
# syntax bash update_and_sync.sh <source> <user@ip> <destination>
DIRECTORY_TO_WATCH="$1"
REMOTE_SERVER_USER_IP="$2"
REMOTE_SERVER_LOCATION="$3"
inotifywait -m $DIRECTORY_TO_WATCH -e close_write -e delete |
    while read path action file; do
        rsync -avzhP $path $REMOTE_SERVER_USER_IP:$REMOTE_SERVER_LOCATION --delete
    done

For local

# bash update_and_sync.sh /tmp/test/ /tmp/test2/
# Change in /tmp/test/ will be synced in /tmp/test2/
DIRECTORY_TO_WATCH="$1"
REMOTE_SERVER_LOCATION="$2"
inotifywait -m $DIRECTORY_TO_WATCH -e close_write -e delete |
    while read path action file; do
        rsync -avzh $path $REMOTE_SERVER_LOCATION --delete
    done

Local with changing file permissions to www-data

# bash update_and_sync.sh /tmp/test/ /tmp/test2/ user_name
# Change in /tmp/test/ will be synced in /tmp/test2/
DIRECTORY_TO_WATCH="$1"
REMOTE_SERVER_LOCATION="$2"
SYNC_USER="$3"
inotifywait -r -m $DIRECTORY_TO_WATCH -e close_write -e delete |
    while read path action file; do
        mkdir -p $path
        rsync -avzh -og $path $REMOTE_SERVER_LOCATION --usermap=$SYNC_USER:www-data --groupmap=$SYNC_USER:www-data --delete
    done