Chapter 3. Using Loops and the sleep Command

This chapter shows how to use loops to perform iterative operations. It also shows how to create a delay in a script. The reader will learn how to use loops and the sleep command in a script.

Topics covered in this chapter are as follows:

• Standard for, while, and until loops.
• Nesting of loops, and how not to get confused.
• Introduce the sleep command and how it is used to cause a delay in a script.
• Go over a common pitfall of using sleep.