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

28. The Perl Scripting Language

In This Chapter

Introduction to Perl 1058

Help 1059

Running a Perl Program 1062

Syntax 1064

Variables 1066

Control Structures 1073

Working with Files 1082

Sort 1086

Subroutines 1087

Regular Expressions 1090

CPAN Modules 1095

Examples 1098

Objectives

After reading this chapter you should be able to:

• Use perldoc to display Perl documentation

• Run a Perl program on the command line and from a file

• Explain the use of the say function

• Name and describe the three types of Perl variables

• Write a Perl program that uses each type of variable

• Describe the Perl control structures

• Write programs that read from and write to files

• Use regular expressions in a Perl program

• Write a Perl program that incorporates ...