In case you want to run ansible (or ansible-playbook) command against a set of hosts that makes sense only for one run,
you can don't bother to create one-time inventory file, but simply define a comma-separated list of hosts as argument of --invertory option (or its short form that's simply -i) as follows:
ansible --inventory=myhost1,myhost2,myhost3 all -m setup -a 'filter=*name*'(note that all in this command line stands for the target hostname)
If you have only one host to run your playbook against, your inventory string must ends with ,
(because otherwise Ansible would interpret it as a name of inventory file, not a hosts' list) for example:
ansible-playbook -i myhost, all -a 'uname -a'