Step 11. To create a user-defined variable, and assign it a value: To create a user-defined (shell) variable, no space before and after the assignment operator (=) For example, Name="Nancy" To see the contents of the user-defined variable by using the echo command, you must precede the name of the variable with a $ operator. For example, echo SName To use double quotation marks to set a variable to a string of characters containing space. To demonstrate how double quotation marks (" ") do not suppress the viewing of a variable's contents, but single quotation marks ( ) do suppress the viewing. You will also see the back quote ( ) operator for executing a command. a. To assign Shepeherd to the user-defined variable named DOG. You type at the command prompt and press Enter. b. Type echo DOG in the command line, and press Enter. What did you see