diff --git a/bin/v-get-database-credentials-of-site b/bin/v-get-database-credentials-of-domain
similarity index 79%
rename from bin/v-get-database-credentials-of-site
rename to bin/v-get-database-credentials-of-domain
index 9375f023c..0082dc9ce 100644
--- a/bin/v-get-database-credentials-of-site
+++ b/bin/v-get-database-credentials-of-domain
@@ -1,5 +1,33 @@
 #!/bin/bash
 
+# info: get database credentials of domain and other basic data
+# options: DOMAIN [SUBFOLDER]
+#
+# The function get database credentials of domain and other basic data.
+
+
+#----------------------------------------------------------#
+#               Check necessary parameters                 #
+#----------------------------------------------------------#
+
+if [ $# -lt 1 ]; then
+    echo "USAGE: v-get-database-credentials-of-site DOMAIN [SUBFOLDER]"
+    exit 1
+fi
+
+#----------------------------------------------------------#
+#                    Variable&Function                     #
+#----------------------------------------------------------#
+
+
+# Argument definition
+DOMAIN=$1
+domain=$1
+SUBFOLDER=''
+if [ $# -gt 1 ]; then
+    SUBFOLDER=$2
+fi
+
 # Importing system environment
 source /etc/profile
 
@@ -7,16 +35,9 @@ source /etc/profile
 source /usr/local/vesta/func/main.sh
 
 
-if [ $# -lt 1 ]; then
-    echo "USAGE: v-get-database-credentials-of-site DOMAIN [SUBFOLDER]"
-    exit 1
-fi
-
-DOMAIN=$1
-SUBFOLDER=''
-if [ $# -gt 1 ]; then
-    SUBFOLDER=$2
-fi
+#----------------------------------------------------------#
+#                    Verifications                         #
+#----------------------------------------------------------#
 
 USER=$(/usr/local/vesta/bin/v-search-domain-owner "$DOMAIN")
 if [ -z "$USER" ]; then
@@ -24,6 +45,10 @@ if [ -z "$USER" ]; then
     exit 2
 fi
 
+#----------------------------------------------------------#
+#                       Action                             #
+#----------------------------------------------------------#
+
 SITE_FOLDER="/home/$USER/web/$DOMAIN/public_html"
 CHECK_PUBLIC_SHTML=$(/usr/local/vesta/bin/v-list-web-domain "$USER" "$DOMAIN" | grep 'SSL:' | grep -c 'single')
 if [ $CHECK_PUBLIC_SHTML -eq 1 ]; then