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.
Hiding worksheets can be a simple way to protect data in Excel, or just a way reduce the clutter of a some tabs. Here are a couple very easy ways to hide and unhide worksheets and workbooks in Excel 2007 / 2010. Hiding a Worksheet. Select the Worksheet youâd like to hide by clicking on the tab at the bottom.By holding down the Ctrl key while clicking you can select multiple tabs at one time. On the Home tab, click on Format, which can be found in the Cells group. Under Visibility, select Hide & Unhide, then Hide Sheet.You can also simply right-click on the tab, and select Hide. Your worksheet will no longer be visible, however, the data contained in the worksheet can still be referenced on other worksheets. Unhide a Worksheet. To unhide a worksheet, you just do the opposite.On the Home tab, click on Format in the Cells group and then under Visibility, select Hide & Unhide, then Unhide Sheet. Or, you can right-click on any visible tab, and select Unhide.iding a Worksheet. Select the Worksheet youâd like to hide by clicking on the tab at the bottom. By holding down the Ctrl key while clicking you can select multiple tabs at one time. On the Home tab, click on Format, which can be found in the Cells group. Under Visibility, select Hide & Unhide, then Hide Sheet.