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Index: O

o command (CPAN.pm) : Chapter 2, Reference: o

O command (Perl debugger) : Chapter 6, Reference: O

-O file test operator : 4.5.8. File Test Operators

-o file test operator : 4.5.8. File Test Operators

O module : 8.115. O

-O option (dprofpp) : 6.5. The Perl Profiler

-o option (perlcc) : 3.4. The Perl Compiler

o pattern match modifier : 4.6.1. Pattern-Matching Operators

object-oriented programming : 7.3. Object-Oriented Perl

objects : 7.3. Object-Oriented Perl

functions for : 5.1. Perl Functions by Category
instance vs. class methods : 7.4. Object Syntax

obtaining Perl modules

2.2. How Is CPAN Organized?
2.4. Getting and Installing Modules

obtaining Perl source code : 2. Installing Perl

oct() : Chapter 5, Reference: oct

ODBM_File module : 8.116. ODBM_File

-offvalue option

Checkbutton widget : 18.5. The Checkbutton Widget
Menubutton widget : 18.14.1. Menu Item Options

$OFMT ($#) variable : 4.4.1. Global Special Variables

$OFS ($,) variable : 4.4.1. Global Special Variables

-ok option (perlbug) : 6.6. The perlbug Program

-okay option (perlbug) : 6.6. The perlbug Program

OLE automation : 19.18. OLE Automation

-onvalue option

Checkbutton widget : 18.5. The Checkbutton Widget
Menubutton widget : 18.14.1. Menu Item Options

Opcode module : 8.117. Opcode

open()

Chapter 5, Reference: open

4.9. Filehandles

document object (PerlScript) : 20.1.1.1. Document methods

Mail::Folder module : Chapter 14, Reference: open

Mail::Mailer module : Chapter 14, Reference: open

Mail::Send module

Chapter 14, Reference: open
14.2.2. Better Header Control with Mail::Send

Win32::Mutex module : 19.9. Win32::Mutex

Win32::Semaphore module : 19.14. Win32::Semaphore

Open() (Win32::Registry) : 19.13. Win32::Registry

opendir() : Chapter 5, Reference: opendir

OpenRequest() (Win32::Internet) : Chapter 19, Reference: OpenRequest

OpenURL() (Win32::Internet) : Chapter 19, Reference: OpenURL

operators : 4.5. Operators

ops module : 8.118. ops

Optionmenu widget (Perl/Tk) : 18.16. The Optionmenu Widget

-options option (Optionmenu) : 18.16. The Optionmenu Widget

OR (|) operator, bitwise : 4.5.10. Bitwise Operators

OR (||) operator, logical : 4.5.9. Logical Operators

oraperl package : 12.2. Design of DBI

ord() : Chapter 5, Reference: ord

-orient option

Scale widget : 18.13. The Scale Widget
Scrollbar widget : 18.9. The Scrollbar Widget

$ORS ($\) variable : 4.4.1. Global Special Variables

Orwant, Jon : 1.4.7. The Perl Journal

$OS_ERROR ($!) variable : 4.4.1. Global Special Variables

$OSNAME ($^O) variable : 4.4.1. Global Special Variables

output

(see also input)
5.1. Perl Functions by Category
formats for : 4.10. Formats

$OUTPUT_AUTOFLUSH ($|) variable : 4.4.6. Filehandle Special Variables

$OUTPUT_FIELD_SEPARATOR ($,) variable : 4.4.1. Global Special Variables

$OUTPUT_RECORD_SEPARATOR ($\) variable : 4.4.1. Global Special Variables

OutputCP() (Win32::Console) : Chapter 19, Reference: OutputCP

=over command (pod) : Chapter 4, Reference: =over

overload module : 8.119. overload

overridedirect() (Frame widget) : 18.18.1. Toplevel Methods

overview_fmt() (Net::NNTP) : Chapter 15, Reference: overview_fmt

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