1. The earliest Chinese characters for yin and yang are found in inscriptions made on âoracle bonesâ (skeletal remains of various animals used in ancient Chinese divination practices at least as early as the 14th century B.C.E.).
There is no general way to hide files in unix/linux in the dos sense. But.... 1. You can put files in a directory and then chmod 700 directory. Now only the owner of the directory can see the files. This is the closest thing to a correct answer to the question. 2. If the file name starts with a dot, it is treated specially by the shells and by ls.
Like other Unixes, the command-line portion of Mac OS X forbids you from using the forward-slash (/) character in filenames. This is because slashes are used to delimit directory names in paths; for example, /Users/btiemann/Documents/File1.txt represents a file four folders down from the system root. I can't name a file Taxes/2006.pdf, because the system would think I'm talking about a subfolder called Taxes with a file called 2006.pdf inside it.