Information Technology

Introduction Perl Programming Essentials (TT4925)

Instructor-Led 18 Agenda

Description

Introduction to Perl Programming Essentials is an Introductory-level practical, hands-on Perl scripting training course that guides the students from the basics of writing and running Perl scripts to using more advanced features such as file operations, report writing, the use of regular expressions, working with binary data files, and using the extensive functionality of the standard Perl library. Students will immediately be able to use Perl to complete tasks in the real world.

Course Overview

Course Objective

Working within in an engaging, hands-on learning environment, guided by our expert web development, PHP practitioner, students will learn to: Create a working script that gets input from the command line, the keyboard, or a file Use arrays to store and process data from files Create formatted reports Use regular expressions Use the appropriate types of variables and data structures Refactor duplicate code into subroutines and modules What is available in the standard library Use shortcuts and defaults, and what they replace

Who Should Attend

This course is appropriate for anyone who wants to create applications or modules to automate and simplify common tasks with Perl.

Session: An Overview of Perl Lesson Id 1

Session: An Overview of Perl

Session: Creating and running Perl Programs Lesson Id 2

Session: Creating and running Perl Programs

Session: Basic Data and I/O Lesson Id 3

Session: Basic Data and I/O

Session: Logic and Loops Lesson Id 4

Session: Logic and Loops

Session: Lists and Arrays Lesson Id 5

Session: Lists and Arrays

Session: Reading and writing text files Lesson Id 6

Session: Reading and writing text files

Session: List functions Lesson Id 7

Session: List functions

Session: Formatting output Lesson Id 8

Session: Formatting output

Session: Hashes Lesson Id 9

Session: Hashes

Session: References Lesson Id 10

Session: References

Session: Text and Regular Expressions Lesson Id 11

Session: Text and Regular Expressions

Session: Raw file and data access Lesson Id 12

Session: Raw file and data access

Session: Subroutines and variable scope Lesson Id 13

Session: Subroutines and variable scope

Session: Working with the operating system Lesson Id 14

Session: Working with the operating system

Session: Shortcuts and defaults Lesson Id 15

Session: Shortcuts and defaults

Session: Data wrangling Lesson Id 16

Session: Data wrangling

Session: Using the Perl Library Lesson Id 17

Session: Using the Perl Library

Session: Some Useful Tools Lesson Id 18

Session: Some Useful Tools

Lesson Id	Title	Description
1	Session: An Overview of Perl	What is Perl?<br />Perl is compiled and interpreted<br />Perl Advantages and Disadvantages<br />Downloading and Installing Perl<br />Which version of Perl<br />Getting Help
2	Session: Creating and running Perl Programs	Structure of a Perl program<br />Running a Perl script<br />Checking syntax and warnings<br />Execution of scripts under Unix and Windows
3	Session: Basic Data and I/O	Numeric and Text literals<br />Math operators and expressions<br />Scalar variables<br />Default values<br />Writing to standard output<br />Command line arguments<br />Reading from the standard input
4	Session: Logic and Loops	About flow control<br />The if statement and Boolean values<br />Using unless and elsif<br />Statement modifiers<br />warn() and die()<br />The conditional construct<br />Using while loop and its variants<br />Using the for loop<br />Exiting from loops
5	Session: Lists and Arrays	The list data type<br />Accessing array elements<br />Creating arrays<br />List interpolation<br />Arrays and memory<br />Counting elements<br />Iterating through an array<br />List evaluation<br />Slices and ranges
6	Session: Reading and writing text files	File I/O Overview<br />Opening a file<br />Reading text files<br />Writing to a text file<br />Arrays and file I/O<br />Using the <> operator
7	Session: List functions	Growing and shrinking arrays<br />The split() function<br />Splitting on whitespace<br />Assigning to literal lists<br />The join() function<br />The sort() function<br />Alternate sort keys<br />Reversing an array
8	Session: Formatting output	Using sprintf() and printf()<br />Report formatting overview<br />Defining report formats<br />The write() function<br />Advanced filehandle magic
9	Session: Hashes	Hash overview<br />Creating hashes<br />Hash attributes<br />Traversing a hash<br />Testing for existence of elements<br />Deleting hash elements
10	Session: References	What is a reference?<br />The two ways to create references<br />References to existing data<br />References to anonymous data<br />Dereferencing scalar, array, and ash references<br />Dereferencing elements of arrays and hashes<br />Multidimensional arrays and other data structures
11	Session: Text and Regular Expressions	String length<br />The substr() function<br />The index() and rindex() functions<br />String replication<br />Pattern matching and substitution<br />Regular expressions
12	Session: Raw file and data access	Opening and closing raw (binary) files<br />Reading raw data<br />Using seek() and tell()<br />Writing raw data<br />Raw data manipulation with pack() and unpack()
13	Session: Subroutines and variable scope	Understanding packages<br />Package and Lexical variables<br />Localizing builtin variables<br />Declaring and calling subroutines<br />Calling subroutines<br />Passing parameters and returning values
14	Session: Working with the operating system	Determining current OS<br />Environment variables<br />Running external programs<br />User identification<br />Trapping signals<br />File test operators<br />Working with files<br />Time of day
15	Session: Shortcuts and defaults	Understanding $_<br />shift() with no array specified<br />Text file processing<br />Using grep() and Using map()<br />Command-line options for file processing
16	Session: Data wrangling	Quoting in Perl<br />Evaluating arrays<br />Understanding qw( )<br />Getting more out of the <> operator<br />Read ranges of lines<br />Using m//g in scalar context<br />The /o modifier<br />Working with embedded newlines<br />Making REs more readable<br />Perl data conversion
17	Session: Using the Perl Library	The Perl library<br />Old-style library files<br />Perl modules<br />Modules bundled with Perl<br />A selection of modules<br />Getting modules from ActiveState<br />Getting modules from CPAN<br />Using Getopt::Long
18	Session: Some Useful Tools	Sending and receiving files with Net::FTP<br />Using File::Find to search for files and directories<br />Grabbing a Web page<br />Some good places to find scripts<br />Perl man pages for more information<br />Zipping and unzipping files