diff --git a/scripts/check-health.sh b/scripts/check-health.sh
index f8efff3..854df4a 100755
--- a/scripts/check-health.sh
+++ b/scripts/check-health.sh
@@ -8,11 +8,9 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 cd "$PROJECT_ROOT"
 
-# Couleurs pour l'output
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-NC='\033[0m' # No Color
+# Charger les couleurs depuis common.sh
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/common.sh"
 
 # Compteurs
 CHECKS_PASSED=0
diff --git a/scripts/recover.sh b/scripts/recover.sh
index ee7562d..d9c5edf 100755
--- a/scripts/recover.sh
+++ b/scripts/recover.sh
@@ -8,21 +8,15 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 cd "$PROJECT_ROOT"
 
+# Configuration des logs
 LOG_DIR="./logs"
 LOG_FILE="$LOG_DIR/recover_$(date +%Y%m%d_%H%M%S).log"
 
-# Créer le dossier de logs
 mkdir -p "$LOG_DIR"
 
-# Fonction de logging
-log() {
-  local level="$1"
-  shift
-  local message="$*"
-  local timestamp
-  timestamp=$(date '+%Y-%m-%d %H:%M:%S')
-  echo "[$timestamp] [$level] $message" | tee -a "$LOG_FILE"
-}
+# Charger les fonctions communes (log avec couleurs)
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/common.sh"
 
 log "INFO" "=== Script de récupération Nextcloud ==="
 log "INFO" "Log file: $LOG_FILE"
diff --git a/scripts/restore.sh b/scripts/restore.sh
index 1e86281..4be1e53 100755
--- a/scripts/restore.sh
+++ b/scripts/restore.sh
@@ -8,39 +8,33 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 cd "$PROJECT_ROOT"
 
-LOG_DIR="./logs"
-LOG_FILE="$LOG_DIR/restore_$(date +%Y%m%d_%H%M%S).log"
-TEMP_DIR=""
-
-# Créer le dossier de logs
-mkdir -p "$LOG_DIR"
-
-# Fonction de logging
-log() {
-  local level="$1"
-  shift
-  local message="$*"
-  local timestamp
-  timestamp=$(date '+%Y-%m-%d %H:%M:%S')
-  echo "[$timestamp] [$level] $message" | tee -a "$LOG_FILE"
-}
-
-# Charger les variables d'environnement
+# Charger .env en premier
 if [ ! -f .env ]; then
-  log "ERROR" "Fichier .env introuvable"
+  echo "ERROR: Fichier .env introuvable"
   exit 1
 fi
 
-# Charger .env de manière sécurisée
 set -a
 # shellcheck disable=SC1091
 source .env
 set +a
 
+# Configuration des logs
+LOG_DIR="./logs"
+LOG_FILE="$LOG_DIR/restore_$(date +%Y%m%d_%H%M%S).log"
+TEMP_DIR=""
+
+mkdir -p "$LOG_DIR"
+
+# Charger les fonctions communes (log avec couleurs)
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/common.sh"
+
 # Vérifier les variables requises
-: "${MYSQL_USER:?Variable MYSQL_USER non définie}"
-: "${MYSQL_PASSWORD:?Variable MYSQL_PASSWORD non définie}"
-: "${MYSQL_DATABASE:?Variable MYSQL_DATABASE non définie}"
+if [ -z "${MYSQL_USER:-}" ] || [ -z "${MYSQL_PASSWORD:-}" ] || [ -z "${MYSQL_DATABASE:-}" ]; then
+  log "ERROR" "Variables MySQL non définies dans .env"
+  exit 1
+fi
 
 # Vérifier les arguments
 if [ -z "${1:-}" ]; then
diff --git a/scripts/update.sh b/scripts/update.sh
index 0643cc4..142a8db 100755
--- a/scripts/update.sh
+++ b/scripts/update.sh
@@ -8,23 +8,17 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 cd "$PROJECT_ROOT"
 
+# Configuration des logs
 LOG_DIR="./logs"
 LOG_FILE="$LOG_DIR/update_$(date +%Y%m%d_%H%M%S).log"
 MAINTENANCE_ENABLED=false
 COMPOSE_BACKUP=""
 
-# Créer le dossier de logs
 mkdir -p "$LOG_DIR"
 
-# Fonction de logging
-log() {
-  local level="$1"
-  shift
-  local message="$*"
-  local timestamp
-  timestamp=$(date '+%Y-%m-%d %H:%M:%S')
-  echo "[$timestamp] [$level] $message" | tee -a "$LOG_FILE"
-}
+# Charger les fonctions communes (log avec couleurs)
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/common.sh"
 
 # Fonction de nettoyage en cas d'erreur
 cleanup() {