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LPW: Beginners Perl

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Dave Cross
Dave Cross

My Beginners Perl tutorial, much abbreviated and as presented at the London Perl Workshop on Dec 1st 2007. Also includes the section on Regular Expressions that we didn't have time for on the day.

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Beginners Perl An Introduction to Perl Programming Dave Cross Magnum Solutions Ltd [email_address]
What We Will Cover ,[object Object],[object Object],[object Object],[object Object]
What We Will Cover ,[object Object],[object Object],[object Object],[object Object]
What is Perl?
Perl's Name ,[object Object],[object Object],[object Object],[object Object]
Typical uses of Perl ,[object Object],[object Object],[object Object],[object Object],[object Object]
Less typical uses of Perl ,[object Object],[object Object]
What is Perl Like? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Perl Philosophy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating and Running a Perl Program
Creating a Perl Program ,[object Object],[object Object]
Running a Perl Program ,[object Object],[object Object]
Running a Perl Program ,[object Object],[object Object],[object Object]
Perl Comments ,[object Object],[object Object],[object Object],[object Object]
Command Line Options ,[object Object],[object Object],[object Object],[object Object]
Perl variables
What is a Variable? ,[object Object],[object Object],[object Object],[object Object]
Variable Names ,[object Object],[object Object],[object Object]
Types of Perl Variable ,[object Object],[object Object],[object Object],[object Object],[object Object]
Declaring Variables ,[object Object],[object Object],[object Object],[object Object],[object Object]
Scalar Variables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Type Conversions ,[object Object],[object Object],[object Object]
Quoting Strings ,[object Object],[object Object],[object Object]
Better Quote Marks ,[object Object],[object Object],[object Object]
Undefined Values ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Array Variables ,[object Object],[object Object],[object Object],[object Object]
Array Elements ,[object Object],[object Object],[object Object],[object Object]
Array Slices ,[object Object],[object Object],[object Object],[object Object]
Setting Array Values ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Array Size ,[object Object],[object Object],[object Object]
Hash Variables ,[object Object],[object Object],[object Object]
Accessing Hash Values ,[object Object],[object Object],[object Object]
Hash Slices ,[object Object],[object Object],[object Object]
Setting Hash Values ,[object Object],[object Object],[object Object],[object Object],[object Object]
More About Hashes ,[object Object],[object Object],[object Object],[object Object]
Special Perl Variables ,[object Object],[object Object],[object Object],[object Object]
The Default Variable ,[object Object],[object Object]
Using $_ ,[object Object],[object Object]
A Special Array ,[object Object],[object Object],[object Object],[object Object]
A Special Hash ,[object Object],[object Object],[object Object],[object Object]
Operators and Functions
Operators and Functions ,[object Object],[object Object],[object Object],[object Object],[object Object]
Arithmetic Operators ,[object Object],[object Object],[object Object]
Shortcut Operators ,[object Object],[object Object],[object Object],[object Object]
String Operators ,[object Object],[object Object],[object Object]
File Test Operators ,[object Object]
Functions ,[object Object],[object Object],[object Object],[object Object]
Function Return Values ,[object Object],[object Object],[object Object]
String Functions ,[object Object],[object Object],[object Object]
More String Functions ,[object Object],[object Object]
Substrings ,[object Object],[object Object]
Numeric Functions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Array Manipulation ,[object Object],[object Object],[object Object]
Array Manipulation ,[object Object],[object Object],[object Object]
Arrays and Strings ,[object Object],[object Object]
Hash Functions ,[object Object],[object Object],[object Object],[object Object]
File Operations ,[object Object],[object Object],[object Object]
Other File Functions ,[object Object],[object Object],[object Object],[object Object]
Time Functions ,[object Object],[object Object],[object Object],[object Object]
localtime Caveats ,[object Object],[object Object],[object Object]
Conditional Constructs
Conditional Constructs ,[object Object],[object Object],[object Object],[object Object]
Conditional Constructs ,[object Object],[object Object]
What is Truth? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Comparison Operators ,[object Object],[object Object],[object Object],[object Object]
Comparison Examples ,[object Object],[object Object],[object Object],[object Object],[object Object]
Boolean Operators ,[object Object],[object Object],[object Object],[object Object]
Short-Circuit Operators ,[object Object],[object Object],[object Object]
if ,[object Object],[object Object],[object Object]
if ... else ... ,[object Object],[object Object],[object Object]
if ... elsif ... else ... ,[object Object],[object Object]
if ... elsif ... else ... ,[object Object]
while ,[object Object],[object Object]
until ,[object Object],[object Object]
for ,[object Object],[object Object],[object Object]
for ,[object Object],[object Object]
foreach ,[object Object],[object Object]
foreach ,[object Object]
Using while Loops ,[object Object],[object Object],[object Object]
Breaking Out of Loops ,[object Object],[object Object],[object Object]
Subroutines
Subroutines ,[object Object],[object Object],[object Object]
Subroutine Example ,[object Object]
Calling a Subroutine ,[object Object],[object Object],[object Object],[object Object]
Subroutine Arguments ,[object Object],[object Object]
Multiple Arguments ,[object Object],[object Object]
Calling Subroutines ,[object Object],[object Object]
By Value or Reference ,[object Object],[object Object],[object Object]
By Value or Reference ,[object Object],[object Object]
Returning Values ,[object Object]
Returning a List ,[object Object]
Regular Expressions
Regular Expressions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Match Operator ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Match Examples ,[object Object],[object Object]
Substitutions ,[object Object],[object Object],[object Object],[object Object],[object Object]
Substitution Examples ,[object Object],[object Object]
Binding Operator ,[object Object],[object Object]
Metacharacters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More Metacharacters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Metacharacter Examples ,[object Object]
Quantifiers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Quantifier Examples ,[object Object]
Character Classes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Alternation ,[object Object],[object Object],[object Object],[object Object]
Capturing Matches ,[object Object],[object Object]
Returning Captures ,[object Object],[object Object]
More Information
Perl Websites ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Websites ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Conferences ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Conferences ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Workshops ,[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Mailing Lists ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Books ,[object Object],[object Object],[object Object],[object Object]
Perl Books ,[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Books ,[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Books ,[object Object],[object Object],[object Object],[object Object],[object Object]
Perl Magazines ,[object Object],[object Object]
That's All Folks ,[object Object],[object Object]

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