Index

$_

Use of $_

&&

Multiple conditions

== vs. =

Numerical comparison

address

What is a pointer?

and

Multiple conditions

Apache

Web servers

append mode

File Handles | File Handles

ar

Libraries

args

Command line arguments

argument list

Passing in variables

ARRAY

References to subroutines

array of arrays

Complex data structures

array of hashes

Complex data structures

array reference

References

arrays

Arrays | Arrays

arrow operator

References

assignment

Scalar Variables

atof

Command line arguments

atoi

Command line arguments

basic elements

Programming Elements

binmode

File Handles

body

HTML

boolean

A C++ program

break

while () {}

C comments

A C Program

C program

A C Program

C++ comment

A C++ program

C++ compiler

A C++ program

CGI

CGI scripts

cgi-bin

Web servers

CGI.pm module

CGI scripts

character class

Regular Expressions

child

Inheritance

child class

Inheritance

chmod

A Perl Program

chomp

File Handles

cin

A C++ program

class

A simple example | Classes

classes

Classes

CODE

References to subroutines

comaring strings

String comparison

command line arguments

Command line arguments | Command line arguments

comparing floats

Numerical comparison

compile

A C Program

complex data structures

Complex data structures

constant variables

Local and global variables

constructor

Constructors | Constructors

continue

while () {}

cout

A C++ program

declaring variables

Declaring variables

define directive

Arrays

defined

Defined and existence

dereferencing a reference

References

die

File Handles

do

while () {} | while () {}

documentation

Programming Elements

double quoting

Double Quoting

error checking

File Handles

escaping

Double Quoting

exists

Defined and existence

EXPORT array

Modules

EXPORT_OK array

Modules

Exporter

Modules

exporting variables

Modules

feof

File Handles

file handles

File Handles | File Handles

floating point comparison

Numerical comparison

fopen

File Handles

for

Simple for () {} | General for ( ) | Simple for () {}

forms

Form tags

free

Allocation

fscanf

File Handles

ftp

HTTP protocol

function pointer

Function pointers

global variables

Local and global variables

grep

Use of $_

HASH

References to subroutines

hash of hashes

Complex data structures

hash reference

References

hashes

Hashes

head

HTML

header file

A C Program

headers

Header files

HERE syntax

HERE syntax

html

HTML

http

HTTP protocol

hyper text

HTML

if

if() { } and | if() { }

if/else

if/else and ternary operators | if/else and ternary operators

if/elsif/else

if/elsif/else and switch statemements

importing variables

Modules

INC array

Modules

increment

General for ( )

inheritance

Inheritance | Inheritance | Inheritance

instance

A simple example

Java

Java

keys

Simple for () {}

labeled loops

while () {}

last

while () {}

lc

String comparison

lib

Modules

library

Libraries

main routine

A C Program

make

Makefiles

Makefile

Makefiles

malloc

Allocation

map

Use of $_

markup

HTML

matching

Regular Expressions

methods

A simple example | Classes

modules

Modules

multiple conditions

Multiple conditions

my

Declaring variables

nested if/else

if/elsif/else and switch statemements

nested loops

while () {}

next

while () {}

not

Multiple conditions

numerical comparison

Numerical comparison

numerical equality

Numerical comparison

object

A simple example

object oriented programming

Objects Oriented Programming

or

Multiple conditions

package

Modules | A simple example

parent

Inheritance

parent class

Inheritance

passing variables into a sub

Passing in and returning

passing variables to a sub

Passing in variables

Perl program

A Perl Program

perldoc

Programming Elements

permissions

A Perl Program

pm file

Modules

pointers

What is a pointer?

pop

Arrays

printf

Command line arguments | A C Program

ARGV

Command line arguments

protocol

HTTP protocol

push

Arrays

query string

Form tags

random numbers

Random values

range

Use of $_

read mode

File Handles | File Handles

reference to a sub

References to subroutines

references

References

regular expressions

Regular Expressions

returning variables from a sub

Returning variables

SCALAR

References to subroutines

scalar reference

References

scalar variables

Scalar Variables | Scalar Variables

scientific notation

Scalar Variables

scoping

Variable scoping | Variable scoping

shift

Arrays | Passing in variables

single quoting

Single Quoting

size of array

Arrays

sort

Sorting

split

File Handles

standard error

Standard Input/Output/Error | Standard Input/Output/Error

standard input

Standard Input/Output/Error | Standard Input/Output/Error

standard ouput

Standard Input/Output/Error | Standard Input/Output/Error

STDERR

Standard Input/Output/Error

STDIN

Standard Input/Output/Error | Standard Input/Output/Error

STDOUT

Standard Input/Output/Error

strcat

Arrays

strcmp

Arrays

strcpy

Arrays

strict

Declaring variables

String

A simple program

string comparison

String comparison

string substitution

Regular Expressions

structures

Structures

subclass

Inheritance

subroutine argument list

Passing in variables

subroutine references

References to subroutines

subroutines

Defining subroutines | Defining subroutines

switch

if/elsif/else and switch statemements | if/else and ternary operators

tags

HTML

ternary operator

if/else and ternary operators | if/else and ternary operators

true

Defined and existence

typedef

Defining structures

uc

String comparison

undef

Defined and existence

unless

if() { } and

unshift

Arrays

until

while () {}

variable scoping

Variable scoping | Variable scoping | Variable scoping

variable types

Scalar Variables

void pointer

Void pointers

warnings

Declaring variables

web server

Web servers

while

while () {} | while () {}

write mode

File Handles | File Handles