Move pages under tldr, lint run.sh, update docs

tldr/ansible

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ansible
+
+> Manage groups of computers remotely over SSH. (use the `/etc/ansible/hosts` file to add new groups/hosts).
+> Some subcommands such as `ansible galaxy` have their own usage documentation.
+> More information: <https://www.ansible.com/>.
+
+- List hosts belonging to a group:
+
+`ansible {{group}} --list-hosts`
+
+- Ping a group of hosts by invoking the ping [m]odule:
+
+`ansible {{group}} -m ping`
+
+- Display facts about a group of hosts by invoking the setup [m]odule:
+
+`ansible {{group}} -m setup`
+
+- Execute a command on a group of hosts by invoking command module with arguments:
+
+`ansible {{group}} -m command -a '{{my_command}}'`
+
+- Execute a command with administrative privileges:
+
+`ansible {{group}} --become --ask-become-pass -m command -a '{{my_command}}'`
+
+- Execute a command using a custom inventory file:
+
+`ansible {{group}} -i {{inventory_file}} -m command -a '{{my_command}}'`
+
+- List the groups in an inventory:
+
+`ansible localhost -m debug -a '{{var=groups.keys()}}'`