Perl Tutorial

Concepts Welcome: what is Perl? Demo
Perl and the Web Demo
Static Web content Demo
Dynamic Web content Demo
What you'll need: 1 Demo
What you'll need: 2 Demo
Your first script: 'hello world' Demo
Running your first script on a web server Demo First Steps Program flow Demo
Variables Demo
Strings and quotes Demo
More about strings Demo
Basic operators Demo
Combined operators Demo
More combined operators Demo Data Types Scalars, hashes and arrays Demo
Working with arrays Demo
More about arrays Demo
Array functions Demo
More array functions Demo
Multidimensional arrays Demo
Taking elements out of arrays Demo
More array manipulation Demo
Working with hashes Demo
Extracting data from hashes Demo
Multidimensional hashes Demo
Now you try: Data Types Demo Making Choices Introducing conditionals
Conditional operators
Conditional blocks
The equality operator
String comparison operators
'else' clauses
The 'elsif ladder'
Logical operators
Nested conditionals
Now you try: Choices Loops and Control Structures Repetition: the 'while' loop
Using the 'while' loop
The 'do..while' loop
Iteration: the 'for' loop
Looping over an array
Nested loops
The 'foreach' loop
Now you try: Loops Strings and Pattern Matching Extracting a substring
Locating a substring: 1
Locating a substring: 2
Changing case
Here-document style strings
Introducing regular expressions
Matching simple patterns
Case-insensitive pattern matching
Matching globally
Wildcards
Character sets: 1
Character sets: 2
Quantifiers
Using quantifiers: 1
Using quantifiers: 2
Alternation
Subpatterns: 1
Subpatterns: 2
Greedy vs non-greedy quantifiers
Examples of non-greedy matching
Replacing using patterns
Subpattern replacement: 1
Subpattern replacement: 2
Now you try: Strings Interacting With The Filesystem Reading from a file
Writing to a file: 1
Writing to a file: 2
Writing to a file: 3
Reading a file's contents at once
Changing the default output filehandle
Reading user input from the command line
An interactive shell script
Refining the script: 1
Refining the script: 2
The script complete
Working with directories
Changing the current working directory
Running executable files: 1
Running executable files: 2
Command-line arguments
Now you try: Interacting with Filesystems CGI Running a CGI script on 'localhost'
Checking errors
Uploading your script: 1
Uploading your script: 2
Environment variables: 1
Environment variables: 2
Serving HTML
The query string
Accessing GET variables
Handling URL-encoded characters
Using HTML forms
Reading POST data
Now you try: CGI Intermediate Coding Techniques Reusing code
Subroutines
Arguments
Returning a value
Explicit returns
Variable scope
Modules and Packages: 1
Modules and Packages: 2 Database Interactivity Perl and databases
Connection handles
Statement handles
Running the script
Using placeholders in SQL
Now you try: Database Interactivity