Originally Posted by PeterT
A pedantic point... . files and directories are not hidden from programs; a program can choose not to display them to users (for instance the ls command hides them unless the user has requested to see them).
That part of the file structure is not available to programs, unless the program calls the specific address. Yes, if you tell the list command to include All it will do so. The point is that Nickel will not see the files in the "hidden" folder and not try to process them.