PERL Training - FREE Tutorials

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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: - Tuition 1
Locating a substring: - Tuition 2
Changing case
Here-document style strings
Introducing regular expressions
Matching simple patterns
Case-insensitive pattern matching
Matching globally
Wildcards
Character sets: - Tuition 1
Character sets: - Tuition 2
Quantifiers
Using quantifiers: - Tuition 1
Using quantifiers: - Tuition 2
Alternation
Subpatterns: 1
Subpatterns: 2
Greedy vs non-greedy quantifiers
Examples of non-greedy matching
Replacing using patterns
Subpattern replacement: - Tuition 1
Subpattern replacement: - Tuition 2
Now you try: Strings

Interacting With The Filesystem
Reading from a file
Writing to a file: - Tuition 1
Writing to a file: - Tuition 2
Writing to a file: - Tuition 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: - Tuition 1
Refining the script: - Tuition 2
The script complete
Working with directories
Changing the current working directory
Running executable files: - Tuition 1
Running executable files: - Tuition 2
Command-line arguments
Now you try: Interacting with Filesystems

CGI
Running a CGI script on 'localhost'
Checking errors
Uploading your script: - Tuition 1
Uploading your script: - Tuition 2
Environment variables: - Tuition 1
Environment variables: - Tuition 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: - Tuition 1
Modules and Packages: - Tuition 2

Database Interactivity
Perl and databases
Connection handles
Statement handles
Running the script
Using placeholders in SQL
Now you try: Database Interactivity

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