uranusjr commented on a change in pull request #17552:
URL: https://github.com/apache/airflow/pull/17552#discussion_r709117613



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File path: docs/apache-airflow/concepts/operators.rst
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@@ -66,20 +66,20 @@ Jinja Templating
 ----------------
 Airflow leverages the power of `Jinja Templating 
<http://jinja.pocoo.org/docs/dev/>`_ and this can be a powerful tool to use in 
combination with :ref:`macros <templates-ref>`.
 
-For example, say you want to pass the execution date as an environment 
variable to a Bash script using the ``BashOperator``:
+For example, say you want to pass the start of the data interval as an 
environment variable to a Bash script using the ``BashOperator``:
 
 .. code-block:: python
 
-  # The execution date as YYYY-MM-DD
+  # The start of the data interval as YYYY-MM-DD
   date = "{{ ds }}"

Review comment:
       I guess we can use `{{ run_id }}`.




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