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Home > Training > Unix > PERL Programming Training

PERL Programming Training

Course#: WA1212

Perl has been described as C, awk, sed, and shell programming all wrapped into one language. In this intense, 5-day, hands-on programming course, you will learn how to take advantage of Perl's power through examples and extensive exercises. Arrays and hashes, I/O, regular expressions, subroutines, and complex data structures are covered in depth. The course also introduces object-oriented programming in Perl, as well as UNIX multi-tasking and Perl sockets programming.

  Programmers and system administrators.
  Fundamentals of UNIX. Experience in a high-level programming language, such as C, C++, or Java, is strongly recommended.
  Five days.

Outline of WA1212 PERL Programming Training

1. Overview of Perl


  • What is Perl?
  • Running Perl Programs
  • Sample Program
  • Another Sample Program
  • Yet Another Example


2. Perl Variables


  • Three Data Types
  • Variable Names and Syntax
  • Variable Naming
  • Lists
  • Scalar and List Contexts
  • The Repetition Operator


3. Arrays and Hashes


  • Arrays
  • Array Functions
  • The foreach Loop
  • The @ARGV Array
  • The grep Function
  • Array Slices
  • Hashes
  • Hash Functions
  • Scalar and List Contexts Revisited


4. Quoting and Interpolation


  • String Literals
  • Interpolation
  • Array Substitution and Join
  • Backslashes and Single Quotes
  • Quotation Operators
  • Command Substitution
  • Here Documents


5. Operators


  • Perl Operators
  • Operators, Functions and Precedence
  • File Test Operators
  • Assignment Operator Notations
  • The Range Operator


6. Flow Control


  • Simple Statements
  • Simple Statement Modifiers
  • Compound Statements
  • The next, last, and redo Statements
  • The for Loop
  • The foreach Loop


7. I/O: Input Operations and File I/O


  • Overview of File I/O
  • The open Function
  • The Input Operator
  • Default Input Operator
  • The Print Function
  • Reading Directories


8. Regular Expressions


  • Pattern Matching Overview
  • The Substitution Operator
  • Regular Expressions
  • Special Characters
  • Quantifiers (*, +, ?, {})
  • Assertions (^, $, \b, \B)


9. Advanced Regular Expressions


  • Substrings
  • Substrings in List Context
  • RE Special Variables
  • RE Options
  • Multi-line REs
  • Substituting with an Expression
  • Perl RE Extensions


10. Subroutines


  • Overview of Subroutines
  • Passing Arguments
  • Private Variables
  • Returning Values


11. References


  • References
  • Creating References
  • Using References
  • Passing References as Arguments to Subroutines
  • Anonymous Composers
  • The Symbol Table


12. Complex Data Structures


  • Two-dimensional Arrays in Perl
  • Anonymous Arrays and Anonymous Hashes
  • Arrays of Arrays
  • Arrays of References
  • A Hash of Arrays
  • A Hash of Hashes
  • And So On...


13. Packages and Modules


  • Packages
  • BEGIN and END Routines
  • require vs. use
  • Modules
  • The bless Function


14. Introduction to Object-Oriented Programming in Perl


  • What is Object-Oriented?
  • Why Use Object-Oriented Programming?
  • Classes, Objects, and Methods in Perl
  • Inheritance, the "is-a" Relationship
  • Containment, the "has-a" Relationship
  • Overloaded Operators
  • Destructors


15. Binary Data Structures


  • Variable-Length (Delimited) Fields
  • Variable vs. Fixed
  • Handling Binary Data
  • The pack Function
  • The unpack Function
  • The read Function
  • C Data Structures


16. Multitasking with Perl


  • What are Single and Multitasking?
  • UNIX Multitasking Concepts
  • Process Creation with fork
  • Program Loading with exec
  • File Descriptor Inheritance
  • How UNIX Opens Files
  • One-Way Data Flow - Pipes
  • Example
  • Final Result - Page Viewing


17. Sockets Programming in Perl


  • Clients and Servers
  • Ports and Services
  • Berkeley Sockets
  • Data Structures of the Sockets API
  • Socket System Calls
  • Generic Client/Server Models
  • A Client/ServerExample
  • A Little Web Server


Appendix A - The Perl Distribution


  • Where Can You Get Perl?
  • How Do You Build Perl?
  • What Gets Created and Installed?
  • Differences Between Platforms


Appendix B - The Perl Debugger


  • Overview of the Perl Debugger
  • Debugger Commands
  • Non-Debugger Commands
  • Listing Lines
  • Single Stepping
  • Setting and Clearing Breakpoints
  • Modifying the Debugger
  • The -w and -D Flags
We regularly offer classes in these and other cities. Atlanta, Austin, Baltimore, Calgary, Chicago, Cleveland, Dallas, Denver, Detroit, Houston, Jacksonville, Miami, Montreal, New York City, Orlando, Ottawa, Philadelphia, Phoenix, Pittsburgh, Seattle, Toronto, Vancouver, Washington DC.
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