Can't get Atom Linter to work

You have to additionally install a linter package for your desired language.

Here is a list: https://atomlinter.github.io/

I needed to remove atom config and start from scratch to make linter working

mv ~/.atom ~/.atom.bak

Instead of opening atom from the terminal like I normally do, I opened it from the application icon. Then atom asks if it was ok to install linter dependencies and presto it was working.

Hope this helps.