diff --git a/bootstrap.sh b/bootstrap.sh
index 97fbd7b..f5eae57 100644
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,186 +1,187 @@
 #!/bin/bash
 ###
 # Part of a stupid script to backup some stuff
 #
 # This bootstrap.sh file does nothing by itself but loads useful stuff.
 #
 # Author: Valerio B.
 # Date:   Wed 5 ago 2020
 ##
 
 # current directory
 DIR="${BASH_SOURCE%/*}"
 if [[ ! -d "$DIR" ]]; then
 	DIR="$PWD";
 fi
 
 # check if the standard input is not a terminal
 INTERACTIVE=
 if [ -t 0 ]; then
 	INTERACTIVE=1
 fi
 
 #
 # Check if this is the quiet mode
 #
 # Actually we are in quiet mode if it's not interactive.
 # This lazy behavior is to avoid stupid emails from the crontab
 # without the need to specify some --quiet etc.
 # Note that in quiet mode only WARN and ERROR messages are shown.
 # I've not created a --quiet flag because nobody is needing it.
 QUIET=
 if [ "$INTERACTIVE" != 1 ]; then
 	QUIET=1
 fi
 
 # path to the instructions file
 INSTRUCTIONS="$DIR/backup-instructions.conf"
 
 # path to the configuration file
 CONFIG="$DIR/options.conf"
 
 # no config no party
 if [ ! -f $CONFIG ]; then
 	echo "missing options expected in $CONFIG"
 	exit 1
 fi
 
 # no instructions no party
 if [ ! -f $INSTRUCTIONS ]; then
 	echo "missing instructions expected in $INSTRUCTIONS"
 	exit 1
 fi
 
 # default mysql commands
 MYSQL="mysql"
 MYSQLDUMP="mysqldump"
 
 # default rsync command
 # --archive:       Try to keep all the properties
 # --fuzzy:         Try to check if a file was renamed instead of delete and download a new one
 #                    It's efficient for example with log rotated files.
 # --delete:        Delete the destination files if not present in the source
 #                    NOTE: we want this behaviour but it's not a good idea toghether with --fuzzy
 #                          that's why we do not use --delete but we use the next flags
 # --delay-updates  Put all updated files into place at end (useful with fuzzy and delete modes)
 # --delete-delay   Delete after everything (useful with fuzzy and delete modes)
-RSYNC="rsync --archive --fuzzy --delay-updates --delete-delay"
+# --hard-links     Try to look for hard links during the transfer to do not copy separate files
+RSYNC="rsync --archive --fuzzy --delay-updates --delete-delay --hard-links"
 
 # default base backup directory for all backups
 BASE="/home/backups"
 
 # default box name
 BOX="$(hostname)"
 
 # set to 1 to avoid any disservice (e.g. systemctl stop/start)
 NO_DISSERVICE=
 
 # set to 1 to do nothing
 PORCELAIN=
 
 # include the configuration to eventually override some options
 . "$CONFIG"
 
 # full pathnames to the backup directories
 BASEBOX="$BASE/$BOX"
 DAILY="$BASEBOX/daily"
 DAILY_FILES="$DAILY/files"
 DAILY_DATABASES="$DAILY/databases"
 DAILY_LASTLOG="$DAILY/last.log"
 DAILY_LASTTIME="$DAILY/last.timestamp"
 
 # apply the porcelain to the rsync command
 if [ "$PORCELAIN" = 1 ]; then
 	RSYNC="$RSYNC --dry-run"
 fi
 
 ###
 # Print something
 #
 # It also put the message in the backup directory
 #
 # @param string severity
 # @param string message
 #
 function printthis() {
 
 	local msg="[$(date)][$1] $2"
 
 	# print to standard output if it's not in quiet mode
 	if [ "$QUIET" != 1 ]; then
 		echo "$msg"
 	fi
 
 	# put in the log file if possible
 	if [ -f "$DAILY_LASTLOG" ]; then
 		echo "$msg" >> "$DAILY_LASTLOG"
 	fi
 }
 
 ###
 # Run an rsync
 #
 function copy() {
 
 	# show what we are doing
 	log "copy $*"
 
 	# run the rsync command
 	if [ "$PORCELAIN" != 1 ]; then
 		$RSYNC $@
 	fi
 }
 
 ###
 # Remove a pathname
 #
 function drop() {
 
 	# show what we are doing
 	log "drop $*"
 
 	# well, proceed... finger crossed... with some protections
 	if [ "$PORCELAIN" != 1 ]; then
 		rm --recursive --force --one-file-system --preserve-root -- $@
 	fi
 }
 
 ###
 # Move something somewhere
 #
 function move() {
 
 	# show what we are doing
 	log "move $*"
 
 	if [ "$PORCELAIN" != 1 ]; then
 		mv --force $@
 	fi
 }
 
 ###
 # Print a information message
 #
 # @param msg Message
 #
 function log() {
 	printthis INFO "$1"
 }
 
 ###
 # Print a warning message
 #
 # @param msg Message
 #
 function warn() {
 	printthis WARN "$1"
 }
 
 ###
 # Print an error message
 #
 # @param msg Message
 #
 function error() {
 	printthis ERROR "$1"
 }