diff --git a/misc/backup_db2 b/tools/backups/backup_db9
similarity index 66%
rename from misc/backup_db2
rename to tools/backups/backup_db9
index 77928770..ca760ea8 100755
--- a/misc/backup_db2
+++ b/tools/backups/backup_db9
@@ -1,29 +1,28 @@
 #!/bin/bash
 
-# usage: backup_db2 dbname
+# usage: backup_db9 dbname
 # Dump une base postgresql, et garde plusieurs dumps dans le passe
 # (configurable dans le script backup_rotation.sh)
 # Les dumps sont compresses (gzip).
 #
-# E. Viennet pour ScoDoc, 2014
+# E. Viennet pour ScoDoc, 2014, 2021 pour ScoDoc 9
 # (ce script est meilleur que l'ancien backup-db, car l'espace entre 
 #   deux sauvegardes dépend de leur anciennete)
 #
 #
 # Note: pour restaurer un backup (en supprimant la base existante !):
 #
-# 0- Arreter scodoc: /etc/init.d/scodoc stop (ou systemctl stop scodoc)
+# 0- Arreter scodoc: systemctl stop scodoc
 #
-# Puis en tant qu'utilisateur postgres:  su postgres
-# 1- supprimer la base existante si elle existe: dropdb SCOXXX
+# Puis en tant qu'utilisateur scodoc:  su scodoc
+# 1- supprimer la base existante si elle existe: dropdb SCODOC
 #
 # 2- recreer la base, vide: createdb -E UTF-8 SCOXXX
-#         (nom de la base: SCOXXX ou XXX=departement)
-#
-# 3- pg_restore  -d SCOXXX SCOXXX_pgdump
+#     /opt/scodoc/tools/create_database.sh SCODOC
+# 3- pg_restore  -d SCODOC SCODOC_pgdump
 #
 # Revenir a l'utilisateur root: exit
-# 4- Relancer scodoc: /etc/init.d/scodoc start (ou systemctl start scodoc)
+# 4- Relancer scodoc: systemctl start scodoc
 
 DBNAME=$1
 DUMPBASE="$DBNAME"-BACKUPS
@@ -50,4 +49,4 @@ pg_dump --format=t "$DBNAME" -f $DUMPFILE
 gzip $DUMPFILE
 
 # 3- Rotate backups: remove unneeded copies
-/opt/scodoc/Products/ScoDoc/misc/backup_rotation.sh "$DUMPBASE"
+/opt/scodoc/tools/backups/backup_rotation.sh "$DUMPBASE"
diff --git a/misc/backup_rotation.sh b/tools/backups/backup_rotation.sh
similarity index 99%
rename from misc/backup_rotation.sh
rename to tools/backups/backup_rotation.sh
index 351a1e36..cfab628d 100755
--- a/misc/backup_rotation.sh
+++ b/tools/backups/backup_rotation.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 # Backup rotation
-# Usage example: backup_rotation.sh /var/lib/postgresql/BACKUP-SCOGEII
+# Usage example: backup_rotation.sh /var/lib/postgresql/BACKUP-SCODOC
 #
 # This script is designed to run each hour
 #
diff --git a/misc/backup_to_remote_server.sh b/tools/backups/backup_to_remote_server.sh
similarity index 85%
rename from misc/backup_to_remote_server.sh
rename to tools/backups/backup_to_remote_server.sh
index 2509ab6a..8638e1bd 100644
--- a/misc/backup_to_remote_server.sh
+++ b/tools/backups/backup_to_remote_server.sh
@@ -11,7 +11,7 @@
 #
 # A adapter a vos besoins. Utilisation a vos risques et perils.
 #
-# E. Viennet, 2002
+# E. Viennet, 2002, 2021
 
 # Installation:
 # 1- Installer rsync:
@@ -30,8 +30,8 @@ logfile=/var/log/rsynclog # log sur serveur scodoc
 # A qui envoyer un mail en cas d'erreur de la sauvegarde:
 SUPERVISORMAIL=emmanuel.viennet@example.com
 
-CALLER=`basename $0`
-MACHINE=`hostname -s`
+CALLER=$(basename $0)
+MACHINE=$(hostname -s)
 
 # -----------------------------------------------------
 
@@ -40,7 +40,7 @@ MACHINE=`hostname -s`
 # ----------------------------------
 terminate()
 {
- dateTest=`date`
+ dateTest=$(date)
 
  mail -s "Attention: Probleme sauvegarde ScoDoc" $SUPERVISORMAIL <<EOF
 The execution of script $CALLER was not successful on $MACHINE.
@@ -57,7 +57,7 @@ EOF
  echo  "Look at logfile $logfile"
  echo
  echo "$CALLER terminated, exiting now with rc=1."
- dateTest=`date`
+ dateTest=$(date)
  echo "End of script at: $dateTest"
  echo ""
 
@@ -74,16 +74,16 @@ EOF
 # --------------------------------------
 rsync_mirror_to_remote()
 {
-  echo "--------------- mirroring " $MACHINE:$srcdir " to " $remotehost:$destdir >> $logfile 2>&1
-  echo "starting at" `date` >> $logfile 2>&1
-  rsync -vaze ssh --delete --rsync-path=/usr/bin/rsync $srcdir $remotehost":"$destdir >> $logfile 2>&1
+  echo "--------------- mirroring $MACHINE:$srcdir to $remotehost:$destdir" >> $logfile 2>&1
+  echo "starting at $(date)" >> $logfile 2>&1
+  rsync -vaze ssh --delete --rsync-path=/usr/bin/rsync "$srcdir" "$remotehost:$destdir" >> $logfile 2>&1
   if [ $? -ne 0 ]
   then
     echo Error in rsync: code=$?
     terminate
   fi
 
-  echo "ending at" `date` >> $logfile 2>&1
+  echo "ending at $(date)" >> $logfile 2>&1
   echo "---------------"  >> $logfile 2>&1
 }