diff --git a/zzz_evobackup b/zzz_evobackup
index 999bc80..bd7aff2 100755
--- a/zzz_evobackup
+++ b/zzz_evobackup
@@ -26,13 +26,16 @@ SERVERS="node0.backup.example.com:2XXX node1.backup.example.com:2XXX"
 # timeout (in seconds) for the SSH test
 SSH_CONNECT_TIMEOUT=30
 
+## We use /home/backup : feel free to use your own dir
+LOCAL_BACKUP_DIR="/home/backup"
+
 # You can set "linux" or "bsd" manually or let it choose automatically
 SYSTEM=$(uname | tr '[:upper:]' '[:lower:]')
 
 ##### SETUP AND FUNCTIONS #############################################
 
 # shellcheck disable=SC2174
-mkdir -p -m 700 /home/backup
+mkdir -p -m 700 ${LOCAL_BACKUP_DIR}
 
 PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:/usr/local/bin
 
@@ -88,33 +91,33 @@ pick_server() {
 }
 
 ## Verify other evobackup process and kill if needed
-PIDFILE=/var/run/evobackup.pid
-if [ -e $PIDFILE ]; then
-    pid=$(cat "$PIDFILE")
+PIDFILE="/var/run/evobackup.pid"
+if [ -e "${PIDFILE}" ]; then
+    pid=$(cat "${PIDFILE}")
     # Killing the childs of evobackup.
-    for ppid in $(ps h --ppid "$pid" -o pid | tr -s '\n' ' '); do
-        kill -9 "$ppid";
+    for ppid in $(ps h --ppid "${pid}" -o pid | tr -s '\n' ' '); do
+        kill -9 "${ppid}";
     done
     # Then kill the main PID.
-    kill -9 "$pid"
-    echo "$0 is still running (PID $pid). Process has been killed" >&2
+    kill -9 "${pid}"
+    echo "$0 is still running (PID ${pid}). Process has been killed" >&2
 fi
-echo "$$" > $PIDFILE
+echo "$$" > ${PIDFILE}
 # shellcheck disable=SC2064
-trap "rm -f $PIDFILE" EXIT
+trap "rm -f ${PIDFILE}" EXIT
 
 ##### LOCAL BACKUP ####################################################
 
 # You can comment or uncomment sections below to customize the backup
 
 ## OpenLDAP : example with slapcat
-# slapcat -l /home/backup/ldap.bak
+# slapcat -l ${LOCAL_BACKUP_DIR}/ldap.bak
 
 ### MySQL
 
 ## example with global and compressed mysqldump
 # mysqldump --defaults-extra-file=/etc/mysql/debian.cnf -P 3306 \
-#  --opt --all-databases --force --events --hex-blob | gzip --best > /home/backup/mysql.bak.gz
+#  --opt --all-databases --force --events --hex-blob | gzip --best > ${LOCAL_BACKUP_DIR}/mysql.bak.gz
 
 ## example with two dumps for each table (.sql/.txt) for all databases
 # for i in $(echo SHOW DATABASES | mysql --defaults-extra-file=/etc/mysql/debian.cnf -P 3306 \
@@ -146,7 +149,7 @@ trap "rm -f $PIDFILE" EXIT
 #     instance=$(echo "$instance"|awk '{ print $3 }')
 #     if [ "$instance" != "3306" ]
 #     then
-#         mysqldump -P $instance --opt --all-databases --hex-blob -u mysqladmin -p$mysqladminpasswd > /home/backup/mysql.$instance.bak
+#         mysqldump -P $instance --opt --all-databases --hex-blob -u mysqladmin -p$mysqladminpasswd > ${LOCAL_BACKUP_DIR}/mysql.$instance.bak
 #     fi
 # done
 
@@ -154,31 +157,31 @@ trap "rm -f $PIDFILE" EXIT
 
 ## example with pg_dumpall (warning: you need space in ~postgres)
 # su - postgres -c "pg_dumpall > ~/pg.dump.bak"
-# mv ~postgres/pg.dump.bak /home/backup/
+# mv ~postgres/pg.dump.bak ${LOCAL_BACKUP_DIR}/
 ## another method with gzip directly piped
 # cd /var/lib/postgresql
-# sudo -u postgres pg_dumpall | gzip > /home/backup/pg.dump.bak.gz
+# sudo -u postgres pg_dumpall | gzip > ${LOCAL_BACKUP_DIR}/pg.dump.bak.gz
 # cd - > /dev/null
 
 ## example with all tables from MYBASE excepts TABLE1 and TABLE2
-# pg_dump -p 5432 -h 127.0.0.1 -U USER --clean -F t --inserts -f /home/backup/pg-backup.tar -t 'TABLE1' -t 'TABLE2' MYBASE
+# pg_dump -p 5432 -h 127.0.0.1 -U USER --clean -F t --inserts -f ${LOCAL_BACKUP_DIR}/pg-backup.tar -t 'TABLE1' -t 'TABLE2' MYBASE
 
 ## example with only TABLE1 and TABLE2 from MYBASE
-# pg_dump -p 5432 -h 127.0.0.1 -U USER --clean -F t --inserts -f /home/backup/pg-backup.tar -T 'TABLE1' -T 'TABLE2' MYBASE
+# pg_dump -p 5432 -h 127.0.0.1 -U USER --clean -F t --inserts -f ${LOCAL_BACKUP_DIR}/pg-backup.tar -T 'TABLE1' -T 'TABLE2' MYBASE
 
 ## MongoDB : example with mongodump
 ## don't forget to create use with read-only access
 ## > use admin
 ## > db.createUser( { user: "mongobackup", pwd: "PASS", roles: [ "backup", ] } )
-# test -d /home/backup/mongodump/ && rm -rf /home/backup/mongodump/
-# mkdir -p -m 700 /home/backup/mongodump/
-# mongodump --quiet -u mongobackup -pPASS -o /home/backup/mongodump/
+# test -d ${LOCAL_BACKUP_DIR}/mongodump/ && rm -rf ${LOCAL_BACKUP_DIR}/mongodump/
+# mkdir -p -m 700 ${LOCAL_BACKUP_DIR}/mongodump/
+# mongodump --quiet -u mongobackup -pPASS -o ${LOCAL_BACKUP_DIR}/mongodump/
 # if [ $? -ne 0 ]; then
 #   echo "Error with mongodump!"
 # fi
 
 ## Redis : example with copy .rdb file
-# cp /var/lib/redis/dump.rdb /home/backup/
+# cp /var/lib/redis/dump.rdb ${LOCAL_BACKUP_DIR}/
 
 ## ElasticSearch, take a snapshot as a backup.
 ## Warning: You need to have a path.repo configured.
@@ -202,48 +205,48 @@ trap "rm -f $PIDFILE" EXIT
 # curl -s -XPUT "localhost:9200/_snapshot/snaprepo/snapshot_${date}?wait_for_completion=true" -o /tmp/es_snapshot_${date}.log
 
 ## RabbitMQ : export config
-#rabbitmqadmin export /home/backup/rabbitmq.config >> /var/log/evobackup.log
+#rabbitmqadmin export ${LOCAL_BACKUP_DIR}/rabbitmq.config >> /var/log/evobackup.log
 
 ## Dump MBR / table partitions with dd and sfdisk
 ## Linux
 #for disk in $(ls /dev/[sv]d[a-z] 2>/dev/null); do
 #    name=$(basename $disk)
-#    dd if=$disk of=/home/backup/MBR-$name bs=512 count=1 2>&1 | egrep -v "(records in|records out|512 bytes)"
-#    fdisk -l $disk > /home/backup/partitions-$name
+#    dd if=$disk of=${LOCAL_BACKUP_DIR}/MBR-$name bs=512 count=1 2>&1 | egrep -v "(records in|records out|512 bytes)"
+#    fdisk -l $disk > ${LOCAL_BACKUP_DIR}/partitions-$name
 #done
-#cat /home/backup/partitions-* > /home/backup/partitions
+#cat ${LOCAL_BACKUP_DIR}/partitions-* > ${LOCAL_BACKUP_DIR}/partitions
 ## OpenBSD
-# disklabel sd0 > /home/backup/partitions
+# disklabel sd0 > ${LOCAL_BACKUP_DIR}/partitions
 
 # backup MegaCli config
-#megacli -CfgSave -f /home/backup/megacli_conf.dump -a0 >/dev/null
+#megacli -CfgSave -f ${LOCAL_BACKUP_DIR}/megacli_conf.dump -a0 >/dev/null
 
 ## Dump system and kernel versions
-uname -a > /home/backup/uname
+uname -a > ${LOCAL_BACKUP_DIR}/uname
 
 ## Dump network routes with mtr and traceroute (warning: could be long with aggressive firewalls)
 for addr in 8.8.8.8 www.evolix.fr travaux.evolix.net; do
-    mtr -r $addr > /home/backup/mtr-${addr}
-    traceroute -n $addr > /home/backup/traceroute-${addr} 2>&1
+    mtr -r ${addr} > ${LOCAL_BACKUP_DIR}/mtr-${addr}
+    traceroute -n ${addr} > ${LOCAL_BACKUP_DIR}/traceroute-${addr} 2>&1
 done
 
 ## Dump process with ps
-ps auwwx >/home/backup/ps.out
+ps auwwx >${LOCAL_BACKUP_DIR}/ps.out
 
-if [ "$SYSTEM" = "linux" ]; then
+if [ "${SYSTEM}" = "linux" ]; then
     ## Dump network connections with netstat
-    netstat -taupen >/home/backup/netstat.out
+    netstat -taupen > ${LOCAL_BACKUP_DIR}/netstat.out
 
     ## List Debian packages
-    dpkg -l >/home/backup/packages
-    dpkg --get-selections >/home/backup/packages.getselections
-    apt-cache dumpavail >/home/backup/packages.available
+    dpkg -l > ${LOCAL_BACKUP_DIR}/packages
+    dpkg --get-selections > ${LOCAL_BACKUP_DIR}/packages.getselections
+    apt-cache dumpavail > ${LOCAL_BACKUP_DIR}/packages.available
 else
     ## Dump network connections with netstat
-    netstat -finet -atn >/home/backup/netstat.out
+    netstat -finet -atn > ${LOCAL_BACKUP_DIR}/netstat.out
 
     ## List OpenBSD packages
-    pkg_info -m >/home/backup/packages
+    pkg_info -m > ${LOCAL_BACKUP_DIR}/packages
 fi
 
 ##### REMOTE BACKUP ###################################################
@@ -269,7 +272,7 @@ HOSTNAME=$(hostname)
 
 BEGINNING=$(/bin/date +"%d-%m-%Y ; %H:%M")
 
-if [ "$SYSTEM" = "linux" ]; then
+if [ "${SYSTEM}" = "linux" ]; then
     rep="/bin /boot /lib /opt /sbin /usr"
 else
     rep="/bsd /bin /sbin /usr"
@@ -308,26 +311,26 @@ rsync -avzh --stats --delete --delete-excluded --force --ignore-errors --partial
     --exclude "/var/lib/clamav/*.tmp"                  \
     --exclude "/home/mysqltmp"                         \
     --exclude "/var/lib/php/sessions"                  \
-        $rep                                           \
+        ${rep}                                         \
         /etc                                           \
         /root                                          \
         /var                                           \
         /home                                          \
         /srv                                           \
-    -e "ssh -p $SSH_PORT"                              \
-    "root@$SSH_SERVER:/var/backup/"                    \
+    -e "ssh -p ${SSH_PORT}"                            \
+    "root@${SSH_SERVER}:/var/backup/"                  \
     | tail -30 >> /var/log/evobackup.log
 
 END=$(/bin/date +"%d-%m-%Y ; %H:%M")
 
 ##### REPORTING #######################################################
 
-echo "EvoBackup - $HOSTNAME - START $BEGINNING"        \
+echo "EvoBackup - ${HOSTNAME} - START ${BEGINNING}"    \
     >> /var/log/evobackup.log
 
-echo "EvoBackup - $HOSTNAME - STOP $END"               \
+echo "EvoBackup - ${HOSTNAME} - STOP ${END}"           \
     >> /var/log/evobackup.log
 
 tail -10 /var/log/evobackup.log |                      \
-    mail -s "[info] EvoBackup - Client $HOSTNAME"      \
-    $MAIL
+    mail -s "[info] EvoBackup - Client ${HOSTNAME}"    \
+    ${MAIL}