I really don’t like the underscore [ _ ] character!
- Please don’t use it in your hostnames, although it appears to work, it’s actually not valid and generates warnings and errors.
- Please don’t use it in your filenames, filesystems can handle files/dirs with whitespace these days.
- Please don’t ask ‘underscore or dash?’ when I say ‘dash’.
If I wanted the underscore, I would say so.
Don't fear the penguin 