Edited sentence: '; relevant commands can be given simple flags to display or suppress such files; and the system interface (viz., system calls) treats all files alike, whether hidden or notDOS and Windows exhibit a plenitude of half-baked behaviors that are reflective of the general unprofessionalism of the Windows programming environment.Specifically, in comparison to the UNIX modelwhere a "hidden file" merely indicates a leading '.The hidden file and directory model is inconsistent and incomplete in DOS and Windows.This stands in stark contrast to the UNIX model thatdespite being nearly fifty years oldcontinues to stun the observer with its flexibility and logical consistency.Windows programmers would disagree, typically never having been exposed to any professional operating systems, and obviously feeling that it is an entirely appropriate state of affairs that tasks requiring, on UNIX, a simple pipeline and some command of text-processing tools instead require, on Windows, a combination of printouts, red pens, tape flags, bulletin boards, pushpins, and errand boys