A Practical Guide to Linux Commands, Editors, and Shell Programming, Fourth Edition

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10 Programming the Bourne Again Shell (bash)

In This Chapter

Control Structures

File Descriptors

Positional Parameters

Special Parameters

Variables

Environment, Environment Variables, and Inheritance

A Recursive Shell Script

The quiz Shell Script

Objectives

After reading this chapter you should be able to:

Use control structures to implement decision making and repetition in shell scripts

Handle input to and output from scripts

Use shell variables (local) and environment variables (global) ...

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