Option to preserve bash history
diff --git a/README.rst b/README.rst
index 562fd51..fa422f7 100644
--- a/README.rst
+++ b/README.rst
@@ -267,6 +267,19 @@
 ``/etc/skel/.bashrc``). This formula will do this automatically, but will not
 touch existing user's ``~/.bashrc`` files except root.
 
+Bash
+~~~~
+
+Fix bash configuration to preserve history across sessions (like ZSH does by
+default).
+
+.. code-block:: yaml
+
+    linux:
+      system:
+        bash:
+          preserve_history: true
+
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