One of my favorite bug to feature stories is hidden files in unix starting with a period. In unix the current directory is . and the previous directory is .. Ea

One of my favorite bug to feature stories is hidden files in unix starting with a period. In unix the current directory is . and the previous directory is .. Early on those directories where simply hidden by not showing anything that started with a period. Quickly though people realized they could not show their own files simply by starting the filename with a period.