Wild cards are the set of special characters, which are used along with DOS commands. When user wants to work with a group of files he can use wild cards. There are 2 types of wild cads
-Asterisk Sign or Star
-Question Mark
Asterisk Sign or Star : The wild card characters will match 0 or any number of characters
C:\>DIR *.txt (Displays all the files .txt as extension in the current directory
Question Mark : It represents a single character.
C:\>DIR rid.txt
