Programming in PERL: Basic/Intermediate

Recommended Duration:: 3 Days
Version: SUN Solaris (V7-V10), IBM AIX V4.3, 5L (V5.1 and V5.2), HP-UX (V11 and V11i), and SGI IRIX V6.5, Linux (Red Hat * SuSe)
Benefits: This course teaches both the programming interface and the techniques that can be used to write procedures in PERL (Practical Extraction and Report Language). PERL is now available for all system platforms, but is usually not provided by the system's manufacturer.
Each student will be able to use PERL techniques and commands to write scripts to perform various user and administrative tasks.
Audience: Developers, Programmers, and System Administrators needing to use and/or create Perl scripts.
Prerequisites: Completion of the "Fundamentals of Unix: Basics" or "Unix System Administration: Essential Operations" course or equvalent experience is assumed (if working on a Unix-based PERL platform). Usage of NOTEPAD for Win32-based PERL is assumed. A knowledge of awk is useful but not mandatory.

Major Topics

Overview of PERL and its purpose
History of PERL
Control capabilities: files, processes, network
Obtain, build, and install PERL
Obtaining modules from CPAN
Writing PERL Scripts
Layout of a PERL procedure
Execution methods
Types of variables: scalars, lists (arrays), associative arrays (hashes), PERL built-ins, globals
Operators: precedence, arithmetic, increment/decrement, pattern matching, relational, conditional, assignment
PERL Programming Constructs: Looping statements and Decision statements
Regular expressions review
Expressions common to PERL/Unix
Expressions unique to PERL
PERL File I/O
Interfacing PERL with the Operating System
Subroutines in PERL procedures
Using as functions
Passing arguments (scalars and arrays)
Introduction to references
Using PERL Extension Functions: procedure location, extension types, require statement, use statement

Exercises

There are several hands-on machine exercises. All five Unix platforms will be available for lab exercises.

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