Update db-backup.py

db-backup.py

@@ -32,7 +32,7 @@ with DAG(
     # )
     mkdir_date = BashOperator(
         task_id='mkdir_date',
-        bash_command="mkdir test; pwd"
+        bash_command="cd /opt/airflow/; mkdir test; pwd"
     )
 
     # # (Task2) 헬스체크