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add note about register + skip (#51339)

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* add note about register + skip

 fixes #27968

* Update docs/docsite/rst/user_guide/playbooks_conditionals.rst

Co-Authored-By: bcoca <bcoca@users.noreply.github.com>

* Update docs/docsite/rst/user_guide/playbooks_conditionals.rst

Co-Authored-By: bcoca <bcoca@users.noreply.github.com>
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Brian Coca 2019-01-29 16:28:18 -05:00 committed by Sandra McCann
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docs/docsite/rst/user_guide/playbooks_conditionals.rst
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@ -278,6 +278,8 @@ Often in a playbook it may be useful to store the result of a given command in a
it later. Use of the command module in this way can in many ways eliminate the need to write site specific facts, for
instance, you could test for the existence of a particular program.
.. note:: Registration happens even when a task is skipped due to the conditional. This way you can query the variable for `` is skipped`` to know if task was attempted or not.
The 'register' keyword decides what variable to save a result in. The resulting variables can be used in templates, action lines, or *when* statements. It looks like this (in an obviously trivial example)::
- name: test play