How shoud the regexp work?

[GeorgeR]

Can you please provide more details regarding how to filter using the regexp?
(foor|bar) is not fully working....

If you have a list of following items:
Ubuntu.18.04.LTS
Ubuntu.16.04.6.LTS
Ubuntu.16.04.5.LTS
Ubuntu.16.04.4.LTS

and Ubuntu.16.04.5.LTS should be obtained, how should the regexp query look like?

Ubuntu|16.04.5|LTS

I tried like this, but it downloads all of them.

Also, the starring doesn't work.
*16.04.5*

Give me an error on parsing.

Thanks,
George

[Jimmy-Z]

https://en.wikipedia.org/wiki/Regular_expression
https://regex101.com/