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chapter6/function_pre_event

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+pre_event ()
+{
+# Add anything that you want to execute in this function. You can
+# hardcode the tasks in this function or create an external shell
+# script and execute the external function here.
+
+:  # No-Op: The colon (:) is a No-Op character. It does nothing and
+   # always produces a 0, zero, return code.
+}
+