diff --git a/cd.sh b/cd.sh
index 2757fc5..15756bc 100644
--- a/cd.sh
+++ b/cd.sh
@@ -95,6 +95,7 @@ local text=""
 "
     done
     cd_write "${CD_DNS_FILE}" "${text}"
+    cd_cat "${CD_DNS_FILE}"
 }
 
 cd_set_packages_repositories () {
@@ -246,6 +247,13 @@ cd_set_python_commands () {
 
 #
 
+cd_cat () {
+    if [ -f "${1}" ] ; then
+        echo "$(realpath "${1}")"
+        cat "${1}"
+    fi
+}
+
 cd_install_package () {
     if [ "${1}" ] ; then
         case "${CD_OS_NAME}" in