Wild Cards and Literals: Now that you understand filename rules, you should understand the use of two convenient tools: wild cards and literals. Wild Cards: In the card game poker, a wild card may be any card that a player chooses. Forexample, if deuces are "wild," a player can make three kings by using two kings and a deuce. In DOS, an asterisk (*) character is "wild." The asterisk stands for one or more characters in a filename or extention, beginning with the asterisk position. If only an asterisk is used, it represents the entire filename. A few examples are in order. If you wish to list a directory of all files having the extension COM, you can type the command DIR *.COM and press Enter. Every filename with the extension COM is listed. If you want to list a directory of every file beginning with the letter W, you can use the command DIR W *.*. Every filename beginning with W and having any extension is listed. Therefore, the wild card lets you select a set