diff --git a/cfg_checker/common/file_utils.py b/cfg_checker/common/file_utils.py
index c550184..398ea66 100644
--- a/cfg_checker/common/file_utils.py
+++ b/cfg_checker/common/file_utils.py
@@ -67,7 +67,7 @@
 
     _dict = {
         'fd': fd.fileno(),
-        'mode': oct(mode & 0777),
+        'mode': oct(mode & 0o777),
         'device': hex(dev),
         'inode': ino,
         'hard_links': nlink,
@@ -102,3 +102,11 @@
         return "... folder '{}' created".format(_folder)
     else:
         return "... folder is at '{}'".format(_folder)
+
+
+def ensure_folder_removed(_folder):
+    if os.path.exists(_folder):
+        os.rmdir(_folder)
+        return "... folder '{}' removed".format(_folder)
+    else:
+        return "... folder '{}' not exists".format(_folder)