A Practical Guide to Fedora™ and Red Hat® Enterprise Linux®

9. The Bourne Again Shell

In This Chapter

Startup Files 282

Redirecting Standard Error 285

Writing a Simple Shell Script 288

Job Control 296

Manipulating the Directory Stack 298

Parameters and Variables 301

Processes 316

History 319

Re-executing and Editing Commands 320

Functions 338

Controlling bash: Features and Options 340

Processing the Command Line 344

Objectives

After reading this chapter you should be able to:

• Describe the purpose and history of the Bourne Again Shell

• List the startup files bash runs

• Use three different methods to run a shell script

• Manage multiple processes with job control

• Redirect error messages to a file

• Use special characters to separate and group commands

• Create variables and display the values of ...