In this chapter, we will discuss how to use shell arrays in Unix. A shell variable is capable enough to hold a single value. These variables are called scalar variables.
Shell supports a different type of variable called an array variable. This can hold multiple values at the same time. Arrays provide a method of grouping a set of variables. Instead of creating a new name for each variable that is required, you can use a single array variable that stores all the other variables.
All the naming rules discussed for Shell Variables would be applicable while naming arrays.
Defining Array Values
The difference between an array variable and a scalar variable can be explained as follows.
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