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    short_description: Lookup matching variable names
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    options:
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        required: True
am
- name: List variables that start with qz_
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  vars:
    qz_1: hello
    qz_2: world
    qa_1: "I won't show"
    qz_: "I won't show either"

- name: Show all variables
  ansible.builtin.debug: msg="{{ lookup('ansible.builtin.varnames', '.+')}}"

- name: Show variables with 'hosts' in their names
  ansible.builtin.debug: msg="{{ lookup('ansible.builtin.varnames', 'hosts')}}"

- name: Find several related variables that end specific way
  ansible.builtin.debug: msg="{{ lookup('ansible.builtin.varnames', '.+_zone$', '.+_location$') }}"

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