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Add example of checking registered variable for emptiness. (#15510)

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Fran Torres-Lopez 2016-04-22 15:23:17 -05:00 committed by Brian Coca
parent 6a983b0fc4
commit 0eead1a3f6
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docsite/rst/playbooks_conditionals.rst
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@ -271,6 +271,22 @@ fields::
with_items: home_dirs.stdout_lines
# same as with_items: home_dirs.stdout.split()
As shown previously, the registered variable's string contents are accessible with the 'stdout' value.
You may check the registered variable's string contents for emptiness::
- name: check registered variable for emptiness
hosts: all
tasks:
- name: list contents of directory
command: ls mydir
register: contents
- name: check contents for emptiness
debug: msg="Directory is empty"
when: contents.stdout == ""
.. seealso::