Index

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# Index: O

-O operator : 10.5. The -x File Tests
-o operator : 10.5. The -x File Tests
object methods : 19.8.1. Object-Oriented Programming in Perl
object-oriented programming : 19.8.1. Object-Oriented Programming in Perl
objects, CGI programs and : 19.8.1. Object-Oriented Programming in Perl
obscure biblical reference : 15.5. Transliteration
oct( ) operator
  2.2.3. Integer Literals
  2.4.4. Conversion Between Numbers and Strings
octal numbers : 2.2.3. Integer Literals
open( ) operator
  10.2. Opening and Closing a Filehandle
  19.8.2. Objects in CGI.pm
  commands and, example of : 1.5.17. The Final Programs
  example of
    A.9. Chapter 10, Filehandles and File Tests
    1.5.17. The Final Programs
    11.3. Invoking a Format
  introduced : 1.5.10. Moving the Secret Word List into a Separate File
  pipe symbol and : 1.5.12. Warning Someone When Things Go Astray
  plus sign and : 17.4. Fixed-Length Random Access Databases
  vertical bar in : 14.3. Using Processes as Filehandles
opendir( ) operator : 12.4. Opening and Closing a Directory Handle
  example of : A.11. Chapter 12, Directory Access
opening
  DBM database : 17.2. Opening and Closing DBM Hashes
  files : 10.2. Opening and Closing a Filehandle
operand, definition of : 2.4. Scalar Operators
operators
  addition : 2.4.1. Operators for Numbers
  assignment : 2.6. Scalar Operators and Functions
  for associative arrays : 5.4. Hash Functions
  associativity of : 2.4.3. Operator Precedence and Associativity
  autodecrement : 2.6.2. Autoincrement and Autodecrement
  autoincrement : 2.6.2. Autoincrement and Autodecrement
  definition of : 2.4. Scalar Operators
  division : 2.4.1. Operators for Numbers
  logical comparison : 2.4.1. Operators for Numbers
  multiplication : 2.4.1. Operators for Numbers
  precedence of : 2.4.3. Operator Precedence and Associativity
  for scalar variables : 2.6. Scalar Operators and Functions
  string : 2.4.2. Operators for Strings
  string comparison : 2.4.2. Operators for Strings
  string repetition : 2.4.2. Operators for Strings
  subtraction : 2.4.1. Operators for Numbers
  undef and : 2.9. The Undefined Value
ord( ) operator : 16.2. Packing and Unpacking Binary Data
OS/2, Perl under : 1.3. Availability
ownership of files, changing : 13.6. Modifying Ownership

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