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Index: P

-p command-line option

modifying files with: 7.16.2. Solution

writing filters: 7.14.3.2. Command-line options

pack( ): 1.4.3. Discussion

8.13.2. Solution

with Tk resize events: 15.16.2. Solution

package statement: 12.. Introduction

__PACKAGE__ symbol: 10.4.3. Discussion

12.6.3. Discussion

packages: 12.. Introduction

determining current calling: 12.6.1. Problem

overriding built-in functions: 12.12.1. Problem

private variables: 12.4.1. Problem

referring to indirectly: 12.16.1. Problem

paragraphs

counting in files: 8.2.1. Problem

in pod documentation: 12.20.3. Discussion

reading files backwards by: 8.4.1. Problem

reformatting: 1.17.1. Problem

param( ): 19.1.3. Discussion

parent classes

accessing overridden methods: 13.11.1. Problem

cloning objects: 13.6.1. Problem

parentheses ( ): 1.. Introduction

autouse pragma: 12.3.3. Discussion

prototyping functions: 10.11.3.1. Omitting parentheses

substitution: 6.1.3. Discussion

parse( ), HTML tables, extracting data: 20.19.3. Discussion

parse_csv subroutines: 1.20.3. Discussion

ParseDate( ): 3.7.2. Solution

3.11. Program: hopdelta

parsing

comma-separated data: 1.20.1. Problem

command-line arguments: 15.1.1. Problem

commas into numbers: 2.16.1. Problem

date and time from strings: 3.7.1. Problem

filenames: 9.10.1. Problem

HTML: 20.18.1. Problem

HTML tags: 20.6.1. Problem

web server log file: 20.12.1. Problem

XML

into data structures: 22.1.1. Problem

into DOM tree: 22.2.1. Problem

into SAX events: 22.3.1. Problem

passing

arrays and hashes by reference: 10.5.1. Problem

by named parameter: 10.7.1. Problem

passwords

randomly generating: 2.6.3. Discussion

reading without echo: 15.10.1. Problem

15.10.1. Problem

paths, XML: 22.. Paths

pattern matching (see regular expressions)

pattern separators, reading data with: 6.7.1. Problem

PDL (Perl Data Language): 2.13.2. Solution

modules, matrix multiplication: 2.13.2. Solution

percent sign (%)

hashes: 5.. Introduction

%SIG hash: 16.15.2. Solution

performance

backreferences and: 1.11.3. Discussion

database access, speeding with mod_perl: 21.8.1. Problem

event-based XML parsing: 22.3.1. Problem

presizing hashes: 5.14.3. Discussion

web server, improving: 21.12.1. Problem

Perl Data Language (see PDL)

PERL5LIB environment variable: 12.8.3. Discussion

perlmenu module: 15.12.3. Description

PERL_UNICODE environment variable: 8.21.3. Discussion

permissions

CGI scripts: 19.3.3.2. Make sure the script has permissions to do what it's trying to do

libraries: 19.3.3.3. Is the script valid Perl?

symbolic file, instead of octal values: 9.11.1. Problem

testing files for trustworthiness: 8.17.1. Problem

permutations, generating all possible: 4.20. Program: permute

permute program: 4.20. Program: permute

persistent

data structures: 11.14.1. Problem

database data: 14.7.1. Problem

private subroutine variables: 10.3.1. Problem

personal identification number (PIN): 6.19.3. Discussion

PF_ constants: 17.. Introduction

.ph filename extension: 12.17.3. Discussion

PHP, communicating with mod_perl: 21.11.1. Problem

PIN (personal identification number): 6.19.3. Discussion

pinging machines: 18.7.1. Problem

pipe( ): 16.. Process Creation

16.10.2. Solution

places( ): 13.14.5. Example: Overloaded FixNum Class

pluralizing words: 2.17.1. Problem

plus sign (+), file-access modes: 7.1.3. Discussion

.pm filename extension: 12.. Modules

pnotes

Apache requests, sharing information between handlers: 21.13.2. Solution

URLs, storing information in: 21.10.2. Solution

pod

converting into other languages: 12.20.3. Discussion

documentation: 12.20.1. Problem

sorting =head1 sections: 15.22. Program: tkshufflepod

pod2html: 12.20.3. Discussion

pod2man: 12.20.3. Discussion

pod2text tools: 12.20.3. Discussion

POE framework, writing multitasking server with: 17.15.1. Problem

POE::Component::Server::TCP module: 17.15.2. Solution

pop( ), circular lists: 4.17.2. Solution

POP (Post Office Protocol): 18.5.3. Discussion

servers

(see also POP3 servers)

fetching and summarizing messages: 18.15. Program: rfrm

logging in: 18.5.3. Discussion

POP3 servers: 18.5.1. Problem

port connection attempts, logging: 17.20. Program: backsniff

portability

closing filehandles: 7.. I/O Operations

encodings in XML: 22.. XML Declaration

Portable Operating System Interface (see POSIX)

pos( ): 6.14.3. Discussion

POSIX module

blocking signals: 16.20.2. Solution

today's date: 3.1.3. Discussion

trigonometric functions: 2.11.2. Solution

POSIX (Portable Operating System Interface): 0.3. Platform Notes

termios interface: 15.8.1. Problem

time( ): 3.. Introduction

POSIX::close( ): 7.9.2. Solution

7.9.3. Discussion

POSIX::setsid( ): 17.17.3. Discussion

POSIX::strtod( ): 2.1.3. Discussion

POSIX::uname( ): 17.8.2. Solution

POST method: 19.. Behind the Scenes

19.1.3. Discussion

20.2.2. Solution

Post Office Protocol (see POP)

posting Usenet messages: 18.4.1. Problem

pound sign (#), with printf( ): 2.15.3. Discussion

pragmas: 12.. Modules

preallocating memory for hashes: 5.14.1. Problem

prime numbers, calculating: 2.18. Program: Calculating Prime Factors

print( )

email attachments: 18.9.3. Discussion

filehandles

outputting to multiple: 7.8.3. Discussion

storing in variables: 7.5.3. Discussion

printf( ): 1.4.3. Discussion

floating-point numbers, rounding: 2.2.2. Solution

storing filehandles in variables: 7.5.3. Discussion

printing

; printf( ))

(see also print( ))

data structures: 11.11.1. Problem

date and time information: 3.8.1. Problem

hashes: 5.6.1. Problem

lists with commas: 4.2.1. Problem

to multiple filehandles simultaneously: 7.8.1. Problem

private

function to variable: 12.5.1. Problem

methods: 13.. Methods

module variables: 12.4.1. Problem

subroutine variables: 10.2.1. Problem

processes: 16.. Introduction

catching Ctrl-C: 16.18.1. Problem

communicating between: 16.10.1. Problem

controlling input/output: 16.8.1. Problem

creating: 16.. Process Creation

filtering output: 16.5.1. Problem

gathering output: 16.1.1. Problem

groups: 7.25. Program: lockarea

16.14.3. Discussion

imitating files with named pipes: 16.11.1. Problem

large XML files, processing: 22.8.1. Problem

multitasking servers, writing: 17.14.1. Problem

with POE: 17.15.1. Problem

preprocessing input: 16.6.1. Problem

programs

reading from and writing to: 16.4.1. Problem

reading STDERR from: 16.7.1. Problem

replacing: 16.3.1. Problem

running multiple: 16.2.1. Problem

recursively processing files in directories: 9.7.1. Problem

sharing variables among: 16.12.1. Problem

signal handlers: 16.15.1. Problem

overriding: 16.16.1. Problem

writing: 16.17.1. Problem

signals: 16.. Signals

blocking: 16.20.1. Problem

listing available: 16.13.1. Problem

sending: 16.14.1. Problem

turning into errors: 16.22.1. Problem

timing out operations: 16.21.1. Problem

XML processing instructions: 22.. Processing Instructions

XSLT, processing: 22.7.1. Problem

zombies: 16.. Process Creation

avoiding: 16.19.1. Problem

programs

CGI (see CGI programming)

command-line arguments, parsing: 15.1.1. Problem

controlling input/output of: 16.8.1. Problem

controlling with Expect: 15.13.1. Problem

filtering output: 16.5.1. Problem

gathering output from: 16.1.1. Problem

preprocessing input: 16.6.1. Problem

reading from and writing to: 16.4.1. Problem

reading STDERR from: 16.7.1. Problem

replacing: 16.3.1. Problem

running multiple: 16.2.1. Problem

simulating telnet from: 18.6.1. Problem

testing if running interactively: 15.2.1. Problem

progressive matching: 6.5.3. Discussion

protocols

Internet: 18.. Introduction

socket: 17.. Introduction

prototypes: 10.11.1. Problem

13.. Methods

proxy, submitting forms through: 20.2.3. Discussion

psgrep program: 1.24. Program: psgrep

public methods: 13.. Methods

push( ): 4.10.2. Solution

11.2.2. Solution

circular lists: 4.17.2. Solution

Tie::IxHash module and: 5.7.3. Discussion

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