#### Playbook useful switches:
```
ansible-playbook -C -D -i <inventory> [-u <ssh-user>] [-t tag1,tag2] [--list-hosts] [-l host1,host2] play.yml

-C check_mode
-D show file diffs
```

#### Ad-hoc commands:
```
ansible -i <inventory> <host/hostgroup> -a <command>
EXAMPLE: ansible -i inventory/beta tag_Role_api_socket -a "date"
```

#### Gather facts from a host:
```ansible -m setup -i <inventory> <host>```


#### Search for pattern in all encrypted vault files:
```for f in $(grep -rl '$ANSIBLE_VAULT;1.1'); do echo $f:; ansible-vault view $f | grep <pattern>; done```