Is this_option more common than thisOne?
Traditional folders have names like
Capital letters were rare. Not sure why. The shift key had not been invented yet?
In modern times, memory is not a problem.
The system does not require any particular convention. Any character is allowed except for the
I hate programs that do not work properly if I have a space in my file name. I should be allowed to use spaces if I want.
A dirty trick is to use a non-printable character in a file name. If you cannot easily type the file's name, it is difficult to do anything with it.
As a child of the Unix family, convention would give
If your file has a GNU licence, you could name it