Search results: insert loops in unix / linux

a loop is a program that has powerful features, allowing you to repeat a set of commands. in this chapter, you will learn through practical examples of loops contained in shell

the while loop gives you the ability to execute a set of repetitive commands until certain conditions occur. it is often used when you need to manipulate iterative variable

the for loop works on lists of items (items). it repeats a set of commands for each item in a list.

the while loop is perfect for the situation where you want to execute a set of commands while some conditions are true. sometimes you need to execute a set of commands until a

the select loop provides an easy way to create a numbered menu from which the user can select. it is useful when you want to ask the user to select one or more items from a list