Advanced Perl Programming

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Description

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    Course

  • Methodology

    Online

A course in Advanced Perl programming for those with a basic knowledge of the language and a desire to extend their skills. Delegates should have been using Perl for at least several months.

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Subjects

  • Perl
  • IT
  • Programming

Course programme

Advanced Regular Expressions

  • Summary of Using Regular Expressions
  • Reminder of Regular Expression Syntax
  • Different Quote Symbols Revision
  • Quoting Lists Revision q, qq, s///, and m//
  • Writing Regexps More Clearly
  • Further Regexp Syntax
  • Word Boundaries
  • Grouping
  • Line Boundaries
  • Zero-Width Lookahead Assertions
  • Lookbehind Assertions
  • Any Character
  • Alternation
  • Grouping and Backreferences
  • Capturing
  • Optional Parts of Patterns
  • Matching an Exact Number
  • Non-Greedy Quantifiers
  • Finding Multiple Matches
  • Dynamically Making Replacement Text

Advanced Miscellany

  • Advanced Miscellaneous Things 0 but true
  • Trapping Run-Time Errors
  • Executing Code Fragments in Strings
  • Secret Subroutines
  • Static Variables
  • Interpolating Expression Evaluation into Strings
  • Pre-Sizing Array and Hash Variables
  • Named Arguments to a Subroutine
  • Named Arguments Example
  • Coercing Subroutine Arguments
  • Disadvantages of Prototypes
  • Determining Argument Types
  • Determining Return Types
  • Slices of Array and Hashes deleteing Array & Hash Elements
  • Benchmarking Portions of Code
  • Magic Constants

Dates and Times

  • Dates and Times in Perl
  • Time Keeping Concepts
  • Built-in Time Functions
  • POSIX Functions
  • The Time Zone
  • The DateTime Modules
  • Creation of DateTime Objects
  • Obtaining Dates
  • Comparing Dates
  • Adding Intervals to Dates
  • Execution Time

Handling XML Data in Perl

  • Xml as a Data Storage and Transfer Format Xml::Simple
  • Reading an Xml File Back in Xml::Simple Options
  • KeyAttr Example
  • KeyAttr Result XML::DOM
  • Reading in a CSV File

Using Perl Modules from CPAN

  • Perl Modules
  • Using Modules
  • Standard Modules
  • CPAN Modules
  • Why Effective Perl Programmers are Efficient CPAN Users
  • Finding Modules on CPAN
  • Installing Modules
  • The cpan Command
  • Finding Installed Modules
  • Writing Perl Modules
  • Perl Module Boilerplate
  • Perl Module Boilerplate Explained
  • Defining Functions in Modules
  • Exporting Functions
  • Exporting Functions - II
  • Module Variables
  • The Exporter
  • Module Initialization
  • Versions POD Plain Old Documentation File::Copy File::Find Text::Wrap

Creating Classes and Objects

  • Object-Oriented Perl
  • Example Class Use
  • Example Class Use: Explanation
  • Example Class Implementation
  • Class Implementation: Explanation
  • Class Constructor Explanation
  • Constructors
  • What Defines a Constructor?
  • Object Methods
  • Implementing Object Methods
  • Accessing Object Properties
  • Interpolating Object Properties and Methods in Strings
  • Class Names and File names
  • Destructors
  • Static Methods
  • Dual-Purpose Class & Object Methods
  • Inheriting from Other Classes
  • Inheriting from Other Classes II
  • Inheritance Details
  • Singleton Objects
  • Example Class: CGI::Page CGI::Page Implementation
  • Using CGI::Page CGI::Page Class Definition CGI::Page emit Method CGI::Page cgi Method CGI::Page Summary

Advanced Object Orientation

  • Multiple Inheritance
  • Method Lookup
  • The UNIVERSAL Base Class
  • Autoloading Methods
  • Accessor Methods
  • Autoloading Accessor Methods AUTOLOAD Caveats
  • Method Lookup and AUTOLOAD AUTOLOAD for Fast Startup
  • Automatic Loading of Modules
  • Operator Overloading
  • Which Operators to Overload
  • Example: MyTime
  • Cloning of Objects
  • Connecting Methods to Operators
  • Comparison Operator
  • Tying Variables to Modules
  • Making a tie-Compatible Module
  • Tieing Hashes to Files
  • Example: Caseless Hash
  • Implementing Tie Modules

Managing Networks with Perl

  • Network Name Services
  • Network Name Services: the hosts File
  • Parsing the hosts File
  • NIS
  • Querying NIS with Net::NIS
  • Iterating Over NIS Maps with Net::NIS
  • Caveats for Net::NIS
  • DNS
  • DNS Zone Files
  • Automating Zone File Generation
  • Using Perl to Generate Zone Files
  • DNS Queries from Perl
  • DNS Server Consistency Checking
  • Deciding How to Make DNS Queries
  • Using nslookup to Make DNS Queries
  • Using Net::DNS to Make DNS Queries
  • Directory Services
  • WHOIS
  • Making WHOIS Queries from Perl
  • LDAP: Lightweight Directory Access Protocol
  • An LDAP Query with Perl
  • ADSI: Active Directory Service Interfaces
  • ADSI from Perl with Win32::OLE
  • Internet Mail
  • Sending Mail
  • Sending Mail: sendmail on Unix
  • Sending Mail: MAPI on Windows
  • Sending Mail: Choosing a Perl Module
  • Sending Mail: Using Mail::Mailer
  • Related Modules

Network Programming with Perl

  • Objectives
  • Berkeley Sockets
  • Socket Domains and Types
  • Addresses and Port Numbers
  • Servers and Clients
  • A Simple Client
  • A Simple Client Explained
  • Higher Level Socket Modules
  • TCP Servers with IO::Socket
  • TCP Server Explained
  • UDP Clients and Servers
  • Receive UDP Message
  • UDP Explained
  • Unix Domain Sockets
  • Multi Client Servers - Forking
  • Multi Client Servers - Forking Example
  • Multi Client Servers - Select
  • Multi Client Servers - Select Example Net::FTP — File Transfer Protocol
  • LWP - Library for WWW in Perl
  • LWP - Automatic Form Filling

Logging with Perl

  • Logging with Perl
  • Uses of Logs
  • Analyzing Logs
  • Parsing Text Logs
  • Web Access Logs
  • Extended Common Log Format
  • Reading utmp Files
  • Example of Using User::Utmp
  • Reading Windows Event Logs
  • Writing Logs
  • Example Logging Function
  • Using Unix syslog
  • Using Sys::Syslog
  • Rotating Log Files
  • Logging with a Database
  • Logging Related Modules

Managing Users and Processes with Perl

  • User Identity Concepts
  • User Information Under Unix
  • Unix User Information from Perl: Lookup
  • Unix User Information from Perl: Iteration
  • Unix Group Information from Perl
  • Unix User Information: Another Way
  • User Information Under Windows
  • User Groups Under Windows
  • Windows User Information from Perl
  • User Info from Win32::AdminMisc
  • Changing User Information
  • Process Control
  • Unix Process Concepts
  • Process Information Under Unix
  • Using Proc::ProcessTable
  • Windows Process Concepts
  • Process Handles
  • Scheduling Events
  • Filesystem Quotas
  • Monitoring User Activity: Unix
  • Monitoring User Activity: Windows
  • Modules for Users and Processes
  • Modules for Filesystems

Using Perl for Securing Your System

  • Spotting Unexpected Activity
  • Detecting Attempts to Guess Passwords
  • Searching for Suspicious Files
  • Example of Finding Suspicious Files
  • Detecting Changes in Important Files
  • Making MD5 Checksums
  • Example of Checking Files
  • Using SNMP
  • General Advice
  • Existing Security Tools
  • Security Related

References

  • Interesting Web Links

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Advanced Perl Programming

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