In this chapter, we will continue to look at flow control. In Chapter 28, we constructed some simple menus and built the logic used to act on a user’s selection. To do this, we used a series of
if commands to identify which of the possible choices had been selected. This type of construct appears frequently in programs, so much so that many programming languages (including the shell) provide a flow-control mechanism for multiple-choice decisions.
bash multiple-choice compound command is called
case. It has the following syntax:
If we look at the
read-menu program from Chapter 28, we see the logic used to act on a user’s selection