PERL programming

Prerequisites

• Working knowledge of an operating system
• Basic programming experience in C or an operating system command shell (csh, ksh, POSIX etc.)

Audience

System administrators, programmers, and technical users.

Ways to save

Benefits to you

• Learn how to create and run a Perl program and save time by automating administrative tasks
• Learn how to improve control over basic system and user tasks
• Create comprehensive and useful Perl utilities that can dramatically aid in troubleshooting and administrative tasks

Next Steps

POSIX shell programming (H4322S)

Course outline

• Introduction to Perl programming
• What is Perl?
• Parts of a Perl program
• Creating a Perl program
• Introduction to Perl programming
• Perl statements
• Format of Perl statements
• Variables
• Commands
• Evaluation and assignments
• Operators
• Managing data
• Standard file descriptors
• Opening files
• Reading and writing files
• Formatting
• File handling functions
• Looping and branching
• What is True/
• The 'if' conditional
• Using 'unless'
• Loops with 'while' and 'until'
• The 'for' loop
• Using 'foreach'
• Lists, arrays and hashes
• Using lists
• Creating and using arrays
• Working with lists
• Working with arrays
• Working with hashes
• Commands for lists, arrays and hashes
• Looping and branching controls
• Modifiers
• Modifying execution of a loop
• Using labels
• The 'goto' statement
• Commands related to users and groups
• Regular expressions
• Using regular expressions
• Command modifiers
• Character matching
• Anchors and quantifiers
• Using backreferences
• Special sequences
• Module subroutines
• Creating a subroutine
• Pass by value call
• Pass by reference call
• Using subroutines
• Special variables
• Record handling
• Formatting
• Regular expressions
• Process information
• Arrays and hashes
• Process and time commands
• Advanced data structures
• What is possible
• Assigning references
• Using references and records
• Array of records
• Using linked lists
• Arrays of arrays and hashes
• Hash of hashes
• Using hashes of arrays
• The Common Gateway Interface (CGI) Protocol
• The CGI protocol defined
• CGI's role
• Creating a form
• Text area and radio buttons
• CGI strategies
• Security issues
• Debugging CGI scripts
• Perl modules
• What is a module?
• Installing modules
• Tool Kit (Tk)
• Creating windows, widgets and methods
• Sockets
• CGI example