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.
My Computer. The first thing to do is open Windows Explorer (or My Computer) and view the file you wish to change. We'll use the example of MyDocument.rtf. When we browse to the file it looks like this: You'll notice that the file does not appear to have an extensionâit's just called MyDocument.That's because in this example Windows is set to hide extension names. If you can already see file extensions on your computer, skip the next step. If you can't see the file extension, go to, then click the View tab.Uncheck the box titled Hide extensions for known file types like so: Click OK.f you do not have permission to change the file extension, you may have to login as Administrator. Another option is to make a copy of the file, rename the copy and then delete the original. Note: Windows treats file extensions as case-insensitive, i.e. .RTF is the same as .rtf.