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Index: R
- r command (CPAN.pm) : Perl in a Nutshell, Chapter 2, Reference: r
- R command (debugger)
- Perl in a Nutshell, Chapter 6, Reference: R
- Programming Perl, 8.1.1. Debugger Commands
- r command (Perl debugger) : Perl in a Nutshell, Chapter 6, Reference: r
- -r file test operator
- Learning Perl, 10.5. The -x File Tests
- Learning Perl on Win32 Systems, 10.6. The -x File Tests
- Perl in a Nutshell, 4.5.8. File Test Operators
- Programming Perl, 2.5.10. Named Unary and File Test Operators
- -R file test operator
- Learning Perl, 10.5. The -x File Tests
- Perl in a Nutshell, 4.5.8. File Test Operators
- Programming Perl, 2.5.10. Named Unary and File Test Operators
- -r option (dprofpp) : Perl in a Nutshell, 6.5. The Perl Profiler
- -r option (perlbug) : Perl in a Nutshell, 6.6. The perlbug Program
- \r sequence (carriage return) : Perl in a Nutshell, 4.6.3. Escaped Sequences
- race conditions : Perl Cookbook, 19.4. Writing a Safe CGI Program
- rad2deg() (example) : Perl Cookbook, 2.11. Doing Trigonometry in Degrees, not Radians
- radians vs. degrees : Perl Cookbook, 2.11. Doing Trigonometry in Degrees, not Radians
- radio_group() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: radio_group
- radiobutton() (Menubutton) : Perl in a Nutshell, 18.14.2. Menubutton Methods
- Radiobutton widget (Perl/Tk) : Perl in a Nutshell, 18.6. The Radiobutton Widget
- radiobuttons
- Advanced Perl Programming, A.1.1. Radiobutton
- Advanced Perl Programming, 14.3.3. Radiobuttons and Checkbuttons
- Perl Cookbook, 15.14. Creating Menus with Tk
- raise() (Canvas) : Perl in a Nutshell, 18.12.3. Canvas Methods
- RaiseError attribute (DBI) : Perl in a Nutshell, 12.2.3. Database Handles and Statement Handles
- rand()
- Advanced Perl Programming, 4.4.2.1. Random number generation
- Perl Cookbook, 2.7. Generating Random Numbers
- Perl Cookbook, 8.6. Picking a Random Line from a File
- Learning Perl, 3.8. Exercises
- Perl in a Nutshell, Chapter 5, Reference: rand
- Programming Perl, 3.2.115. rand
- examples of : Learning Perl, A.2. Chapter 3, Arrays and List Data
- randcap program (example) : Perl Cookbook, 1.9. Controlling Case
- random
- access
- to password file : Learning Perl, 16.1. Getting Password and Group Information
- with seek() : Learning Perl, 17.4. Fixed-Length Random Access Databases
- database access/insertion : Advanced Perl Programming, 10.1. Persistence Issues
- email signatures : Perl Cookbook, 16.22. Program: sigrand
- lines from files : Perl Cookbook, 8.6. Picking a Random Line from a File
- numbers
- Advanced Perl Programming, 4.4.2.1. Random number generation
- Advanced Perl Programming, 4.4.2.1. Random number generation
- Perl Cookbook, 2.0. Introduction
- Perl Cookbook, 2.7. Generating Random Numbers
- Programming Perl, 3.2.115. rand
- Programming Perl, 3.2.158. srand
- biasing : Perl Cookbook, 2.10. Generating Biased Random Numbers
- ordering of lines in files : Perl Cookbook, 8.7. Randomizing All Lines
- random-access I/O : Perl Cookbook, 8.12. Using Random-Access I/O
- randomizing arrays : Perl Cookbook, 4.17. Randomizing an Array
- range (..) operator
- Perl Cookbook, 6.8. Extracting a Range of Lines
- Perl in a Nutshell, 4.5.11.1. Range operator
- Programming Perl, 2.5.15. Range Operator
- Programming Perl, 8.2.3. Awk Traps
- range (...) operator
- Perl Cookbook, 6.8. Extracting a Range of Lines
- Perl in a Nutshell, 4.5.11.1. Range operator
- ranges of characters : Learning Perl, 7.3.1. Single-Character Patterns
- raw_cookie() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: raw_cookie
- RC_ mnemonics (HTTP::Status) : Perl in a Nutshell, 17.3.4. HTTP::Status
- RCPT command (SMTP) : Perl in a Nutshell, 14.1.2. The SMTP Protocol and the SMTP Session
- RDBMSs (relational databases)
- Advanced Perl Programming, 7.1. OO: An Introduction
- Advanced Perl Programming, 10.4. Relational Databases
- $rdev file statistic : Programming Perl, 3.2.159. stat
- re module : Perl in a Nutshell, 8.124. re
- read()
- Perl Cookbook, 8.0. Introduction
- Perl Cookbook, 8.15. Reading Fixed-Length Records
- Learning Perl, 17.4. Fixed-Length Random Access Databases
- Perl in a Nutshell, Chapter 5, Reference: read
- Programming Perl, 3.2.116. read
- Read() (Win32::EventLog) : Perl in a Nutshell, Chapter 19, Reference: Read
- read-only variables : Advanced Perl Programming, 3.3.2. Constants
- ReadAttr() (Win32::Console) : Perl in a Nutshell, Chapter 19, Reference: ReadAttr
- ReadChar() (Win32::Console) : Perl in a Nutshell, Chapter 19, Reference: ReadChar
- readdir function
- Perl Cookbook, 9.0. Introduction
- Perl Cookbook, 9.5. Processing All Files in a Directory
- Learning Perl, 12.5. Reading a Directory Handle
- Perl in a Nutshell, Chapter 5, Reference: readdir
- Programming Perl, 3.2.117. readdir
- Programming Perl, 7.2.11. DirHandle - Supply Object Methods for Directory Handles
- Programming Perl, 8.3.1. Time Efficiency
- ReadEntireFile() (Win32::Internet) : Perl in a Nutshell, Chapter 19, Reference: ReadEntireFile
- reader() (Net::NNTP) : Perl in a Nutshell, Chapter 15, Reference: reader
- ReadFile() (Win32::Internet) : Perl in a Nutshell, Chapter 19, Reference: ReadFile
- reading
- data via low-level system call : Programming Perl, 3.2.166. sysread
- email : (see email)
- files : (see file contents; files)
- from commands : Learning Perl, 14.3. Using Processes as Filehandles
- from files
- Learning Perl, 10.4. Using Filehandles
- Learning Perl on Win32 Systems, 10.5. Using Filehandles
- input : (see input)
- news articles : Perl in a Nutshell, 15.1. The NNTP Protocol
- permissions for processes : Programming Perl, 7.2.39. IPC::Open2 - Open a Process for Both Reading and Writing
- Registry values : Learning Perl on Win32 Systems, 16.5. Opening and Reading Registry Values
- shared memory segment ID : Programming Perl, 3.2.146. shmread
- standard input : Learning Perl, 6.1. Input from STDIN
- Usenet news : Perl Cookbook, 18.4. Reading and Posting Usenet News Messages
- Readline module : Programming Perl, 8.1.4. Readline Support
- ReadLine option (PERLDB_OPTS) : Perl in a Nutshell, 6.4. Customizing the Debugger
- readline() : Perl in a Nutshell, Chapter 5, Reference: readline
- readlink()
- Learning Perl, 13.3.2. Creating Hard and Soft Links with Perl
- Perl in a Nutshell, Chapter 5, Reference: readlink
- Programming Perl, 3.2.118. readlink
- example of : Learning Perl, A.12. Chapter 13, File and Directory Manipulation
- ReadlKey module : Programming Perl, 8.1.4. Readline Support
- readme command (CPAN.pm) : Perl in a Nutshell, Chapter 2, Reference: readme
- ReadParse() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: ReadParse
- readpipe() : Perl in a Nutshell, Chapter 5, Reference: readpipe
- ReadRect() (Win32::Console) : Perl in a Nutshell, Chapter 19, Reference: ReadRect
- ready file descriptors : Programming Perl, 3.2.135. select (ready file descriptors)
- real gid
- Perl in a Nutshell, 4.4.1. Global Special Variables
- Programming Perl, 2.9.3. Global Special Variables
- Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables
- $REAL_GROUP_ID ($() variable
- Perl in a Nutshell, 4.4.1. Global Special Variables
- Programming Perl, 2.9.3. Global Special Variables
- Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables
- real uid
- Perl in a Nutshell, 4.4.1. Global Special Variables
- Programming Perl, 2.9.3. Global Special Variables
- Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables
- $REAL_USER_ID ($<) variable
- Perl in a Nutshell, 4.4.1. Global Special Variables
- Programming Perl, 2.9.3. Global Special Variables
- Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables
- real values, testing for : Programming Perl, 3.2.25. defined
- Received: header line : Perl Cookbook, 3.11. Program: hopdelta
- receiving sockets : Advanced Perl Programming, 12.2.1. Receiver
- recipient() (Net::SMTP) : Perl in a Nutshell, Chapter 14, Reference: recipient
- recno_demo program (example) : Perl Cookbook, 14.7. Treating a Text File as a Database Array
- recompile command (CPAN.pm) : Perl in a Nutshell, Chapter 2, Reference: recompile
- record delimiter
- (see $ variables, $/ variable)
- Perl in a Nutshell, 3.2. Command-Line Options
- input delimiter
- Learning Perl, 6.1. Input from STDIN
- Learning Perl, 14.2. Using Backquotes
- Learning Perl on Win32 Systems, 6.1. Input from STDIN
- Perl in a Nutshell, 4.4.1. Global Special Variables
- Programming Perl, 2.9.3. Global Special Variables
- Programming Perl, 6.1.2. Switches
- Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables
- output delimiter
- Perl in a Nutshell, 4.4.1. Global Special Variables
- Programming Perl, 2.9.3. Global Special Variables
- Programming Perl, 6.1.2. Switches
- Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables
- record-oriented persistence : Advanced Perl Programming, 10.3. Record-Oriented Approach
- records : Perl Cookbook, 11.0. Introduction
- binary tree structures : Perl Cookbook, 11.15. Program: Binary Trees
- closures as objects : Perl Cookbook, 11.7. Using Closures Instead of Objects
- comma-separated : (see CSV)
- constructing : Perl Cookbook, 11.9. Constructing Records
- counting in files : Perl Cookbook, 8.2. Counting Lines (or Paragraphs or Records) in a File
- fixed-length
- Perl Cookbook, 8.0. Introduction
- Perl Cookbook, 8.15. Reading Fixed-Length Records
- functions for : Perl in a Nutshell, 5.1. Perl Functions by Category
- lastlog file : Perl Cookbook, 8.20. Program: laston
- with pattern separators, reading : Perl Cookbook, 6.7. Reading Records with a Pattern Separator
- random-access I/O : Perl Cookbook, 8.12. Using Random-Access I/O
- reading/writing to text files : Perl Cookbook, 11.10. Reading and Writing Hash Records to Text Files
- variable-length
- Perl Cookbook, 8.9. Processing Variable-Length Text Fields
- Programming Perl, 2.8. Formats
- of various data strutures : Programming Perl, 4.7.5. More Elaborate Records
- wtmp file : Perl Cookbook, 8.18. Program: tailwtmp
- recursive
- open functions : Programming Perl, 3.2.102. open
- use of subroutines : Programming Perl, 2.7. Subroutines
- processing files in directories : Perl Cookbook, 9.7. Processing All Files in a Directory Recursively
- recv()
- Perl in a Nutshell, Chapter 5, Reference: recv
- Programming Perl, 3.2.119. recv
- Socket module : Perl in a Nutshell, 13.1. Built-in Socket Functions
- redirect()
- Perl Cookbook, 19.8. Redirecting to a Different Location
- Perl in a Nutshell, Chapter 10, Reference: redirect
- Redirect() (Response object, PerlScript) : Perl in a Nutshell, 20.2.2.3. Response methods
- redirecting : Advanced Perl Programming, 3.4.1. I/O Redirection
- CGI error messages : Perl Cookbook, 19.2. Redirecting Error Messages
- CGI requests : Perl Cookbook, 19.8. Redirecting to a Different Location
- redo operator
- Learning Perl, 9.3. The redo Statement
- Perl in a Nutshell, Chapter 5, Reference: redo
- Perl in a Nutshell, 4.3.1.5. Loop control
- Programming Perl, 2.6.4.4. Loop control
- Programming Perl, 3.2.120. redo
- ref()
- Advanced Perl Programming, 1.4. Querying a Reference
- Advanced Perl Programming, 7.2.4. The Need for Polymorphism
- Perl Cookbook, 11.0. Introduction
- Perl Cookbook, 13.0. Introduction
- Perl in a Nutshell, Chapter 5, Reference: ref
- Perl in a Nutshell, 4.8.2. Dereferencing
- Programming Perl, 3.2.121. ref
- Programming Perl, 4.3.5. Other Tricks You Can Do with Hard References
- references
- (see also scalars)
- Advanced Perl Programming, 1. Data References and Anonymous Storage
- Advanced Perl Programming, 1.1.1. A Reference Is Just Another Scalar
- Advanced Perl Programming, 1.2. Using References
- Advanced Perl Programming, 20.3.1. Scalar Values
- Perl Cookbook, 11.0. Introduction
- Perl in a Nutshell, 4.8. References and Complex Data Structures
- Perl in a Nutshell, 4.8.1. Creating References
- Programming Perl, 4.1. What Is a Reference?
- to anonymous arrays/hashes : Advanced Perl Programming, 1.2.3. References to Anonymous Storage
- to arrays : Perl Cookbook, 11.1. Taking References to Arrays
- arrays of scalar references : Perl Cookbook, 11.6. Creating Arrays of Scalar References
- as hash keys : Perl Cookbook, 13.15. Creating Magic Variables with tie
- autovivification : Perl Cookbook, 11.0. Introduction
- blessed, IVs and : Advanced Perl Programming, 20.3.1.3. SVs and object pointers
- C pointers : Advanced Perl Programming, 1. Data References and Anonymous Storage
- in CGI programs : Learning Perl, 19.7.1. References
- checking for : Programming Perl, 3.2.121. ref
- circular
- Advanced Perl Programming, 1.6.1. Reference Counts
- Programming Perl, 5.3.9. A Note on Garbage Collection
- closures as objects : Perl Cookbook, 11.7. Using Closures Instead of Objects
- to constants : Advanced Perl Programming, 3.3.2. Constants
- dereferencing : Advanced Perl Programming, 1.1.2. Dereferencing
- to filehandles : Programming Perl, 4.2.6. Filehandle Referencers
- to functions : Perl Cookbook, 11.4. Taking References to Functions
- as hash values : Perl Cookbook, 5.12. Hashing References
- to hashes : Perl Cookbook, 11.3. Taking References to Hashes
- hashes of arrays : Perl Cookbook, 11.2. Making Hashes of Arrays
- iterating over arrays by : Perl Cookbook, 4.5. Iterating Over an Array by Reference
- to methods : Perl Cookbook, 11.8. Creating References to Methods
- multidimensional arrays and : Programming Perl, 4.6. A Brief Tutorial: Manipulating Lists of Lists
- multiple levels of : Advanced Perl Programming, 1.2.4. Dereferencing Multiple Levels of Indirection
- nested data structures : Advanced Perl Programming, 1.3. Nested Data Structures
- object references
- Advanced Perl Programming, 7.2.2. Unique Identity
- Programming Perl, 4.3.4. Using Object Methods
- objects as : Programming Perl, 5.3.3. An Object Is Simply a Referenced Thingy
- in other languages : Advanced Perl Programming, 1.7.1. Tcl
- to packages, indirect : Perl Cookbook, 12.13. Referring to Packages Indirectly
- passing
- Perl in a Nutshell, 4.7.3. Passing References
- Programming Perl, 2.7.2. Passing References
- passing by : Perl Cookbook, 10.5. Passing Arrays and Hashes by Reference
- performance and : Advanced Perl Programming, 1.2.2. Performance Efficiency
- precedence and : Advanced Perl Programming, 1.1.6. Confusion About Precedence
- querying : Advanced Perl Programming, 1.4. Querying a Reference
- reference count
- Advanced Perl Programming, 1.6.1. Reference Counts
- Perl Cookbook, 11.0. Introduction
- returning by : Perl Cookbook, 10.9. Returning More Than One Array or Hash
- to scalars : Perl Cookbook, 11.5. Taking References to Scalars
- selective aliases : Advanced Perl Programming, 3.3.1. Selective Aliasing
- self-referential structures : Perl Cookbook, 13.13. Coping with Circular Data Structures
- static allocation : Advanced Perl Programming, 1.1. Referring to Existing Variables
- to subroutines
- (see also closures)
- Advanced Perl Programming, 4.1. Subroutine References
- Advanced Perl Programming, 4.3. Closures
- SWIG and : Advanced Perl Programming, 18.3. SWIG Features
- symbolic
- Advanced Perl Programming, B.6. Dynamic Behavior
- Advanced Perl Programming, 1.5. Symbolic References
- Advanced Perl Programming, 4.1.4. Symbolic References
- Advanced Perl Programming, 6.1.2. Symbolic References
- Perl Cookbook, 1.8. Expanding Variables in User Input
- Perl Cookbook, 12.13. Referring to Packages Indirectly
- syntax for : Advanced Perl Programming, B.1. References
- typeglobs and
- Advanced Perl Programming, 3.2.2.1. Efficient parameter passing
- Advanced Perl Programming, 3.3.4. References to Typeglobs
- use strict 'refs' : Programming Perl, 7.2.59. strict - Restrict Unsafe Constructs
- referents : Perl Cookbook, 11.0. Introduction
- referer() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: referer
- "referrer" vs. "referer" : Perl Cookbook, 20.1. Fetching a URL from a Perl Script
- refile() (Mail::Folder) : Perl in a Nutshell, Chapter 14, Reference: refile
- reflection
- Advanced Perl Programming, 6.8. Accessing the Symbol Table
- Advanced Perl Programming, 6.9. Language Comparisons
- regedit.exe, regedt32.exe utilities : Learning Perl on Win32 Systems, 16.4. The Registry
- -regex option (perlcc) : Perl in a Nutshell, 3.4. The Perl Compiler
- regexes : (see regular expressions)
- RegExp tool : Advanced Perl Programming, 20.1. Reading the Source
- regexps : (see regular expressions)
- Registry access and management
- Learning Perl on Win32 Systems, 16.4. The Registry
- Perl in a Nutshell, 19.13. Win32::Registry
- Registry module
- Learning Perl on Win32 Systems, A.15. Chapter 16, System Information
- Learning Perl on Win32 Systems, B.4. Win32 Extensions
- Learning Perl on Win32 Systems, 16.4. The Registry
- Learning Perl on Win32 Systems, 16.4.1. The Registry Structure
- regular expressions
- (see also pattern matching)
- (see also patterns)
- Perl Cookbook, 1.16. Soundex Matching
- Learning Perl, 1.5.7. Handling Varying Input Formats
- Learning Perl on Win32 Systems, 1.6.7. Handling Varying Input Formats
- Learning Perl on Win32 Systems, 7.1. Concepts About Regular Expressions
- Perl in a Nutshell, 4.6. Regular Expressions
- Programming Perl, 1.7. Regular Expressions
- Programming Perl, 2.4.1. Regular Expressions
- alternation in : Learning Perl, 7.3.2.4. Alternation
- anchoring in
- Learning Perl, 7.3.3. Anchoring Patterns
- Learning Perl on Win32 Systems, 7.3.3. Anchoring Patterns
- anchors : Perl in a Nutshell, 4.6.5. Anchors
- backreferences : Programming Perl, 1.7.4. Backreferences
- backtracking in : Learning Perl, 7.3.2.2. Multipliers
- character classes
- Learning Perl, 7.3.1. Single-Character Patterns
- Perl in a Nutshell, 4.6.4. Character Classes
- Programming Perl, 1.7. Regular Expressions
- checking if strings are valid numbers : Perl Cookbook, 2.1. Checking Whether a String Is a Valid Number
- commenting : Perl Cookbook, 6.4. Commenting Regular Expressions
- compared with globbing : Learning Perl, 12.2. Globbing
- definition of : Learning Perl, 7.1. Concepts About Regular Expressions
- escaped sequences : Perl in a Nutshell, 4.6.3. Escaped Sequences
- examples of
- Learning Perl, 1.5.8. Making It Fair for the Rest
- Learning Perl, 1.5.9. Making It a Bit More Modular
- Learning Perl, 9.1. The last Statement
- Learning Perl on Win32 Systems, 1.6.8. Making It Fair for the Rest
- Learning Perl on Win32 Systems, 1.6.9. Making It a Bit More Modular
- Learning Perl on Win32 Systems, 9.1. The last Statement
- extended syntax
- Learning Perl on Win32 Systems, D.8. Additional Regular Expression Features
- Perl in a Nutshell, 4.6.8. Extended Regular Expressions
- Programming Perl, 2.4.1.4. Regular expression extensions
- functions for : Perl in a Nutshell, 5.1. Perl Functions by Category
- fuzzy matching : Perl Cookbook, 6.13. Approximate Matching
- grouping patterns of : Learning Perl, 7.3.2. Grouping Patterns
- honoring locale settings : Perl Cookbook, 6.12. Honoring Locale Settings in Regular Expressions
- matching precedence : Programming Perl, 2.4.1.2. The rules of regular expression matching
- metacharacters : (see metacharacters)
- multiple-byte matching : Perl Cookbook, 6.18. Matching Multiple-Byte Characters
- non-special characters of : Learning Perl, 7.3.1. Single-Character Patterns
- pattern match variables : Perl in a Nutshell, 4.6.7. Pattern Match Variables
- pattern matching operators
- Perl in a Nutshell, 4.5.7. Pattern Match Operators
- Perl in a Nutshell, 4.6.1. Pattern-Matching Operators
- precedence in
- Learning Perl, 7.3.4. Precedence
- Learning Perl on Win32 Systems, 7.3.4. Precedence
- quantifiers : Perl in a Nutshell, 4.6.6. Quantifiers
- special (predefined) variables
- Perl in a Nutshell, 4.4.5. Regular Expression Special Variables
- Programming Perl, 2.9.1. Regular Expression Special Variables
- split() and : Learning Perl, 7.6.1. The split Function
- tcgrep program : Perl Cookbook, 6.22. Program: tcgrep
- testing for invalid patterns : Perl Cookbook, 6.11. Testing for a Valid Pattern
- urlify program : Perl Cookbook, 6.21. Program: urlify
- useful and interesting (list) : Perl Cookbook, 6.23. Regular Expression Grabbag
- variable interpolation : Learning Perl, 7.4.4. Using Variable Interpolation
- rel() (URI::URL) : Perl in a Nutshell, Chapter 17, Reference: rel
- relational databases (RDBMSs)
- Advanced Perl Programming, 7.1. OO: An Introduction
- Advanced Perl Programming, 10.4. Relational Databases
- relational operators
- (see comparison operators)
- Perl in a Nutshell, 4.5.4.1. Relational operators
- Programming Perl, 2.5.11. Relational Operators
- relative indexing : Advanced Perl Programming, 14.3.5.3. Insertion with relative indexing
- release()
- Win32::Mutex module : Perl in a Nutshell, Chapter 19, Reference: release
- Win32::Semaphore module : Perl in a Nutshell, Chapter 19, Reference: release
- -relheight, -relwidth options (place geometry manager) : Perl in a Nutshell, 18.2.3. The Place Geometry Manager
- -relief option (widgets) : Perl in a Nutshell, 18.3. Common Widget Configuration Options
- reload command (CPAN.pm) : Perl in a Nutshell, Chapter 2, Reference: reload
- -relx, -rely options (place geometry manager) : Perl in a Nutshell, 18.2.3. The Place Geometry Manager
- remote procedure calls (RPC)
- Advanced Perl Programming, 13.2. Remote Procedure Calls (RPC)
- Advanced Perl Programming, 17.1. On Code Generation
- REMOTE_ADDR variable : Perl in a Nutshell, 9.4. CGI Environment Variables
- remote_host() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: remote_host
- REMOTE_HOST variable : Perl in a Nutshell, 9.4. CGI Environment Variables
- REMOTE_IDENT variable : Perl in a Nutshell, 9.4. CGI Environment Variables
- remote_user() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: remote_user
- REMOTE_USER variable : Perl in a Nutshell, 9.4. CGI Environment Variables
- remove_header() (HTTP::Headers) : Perl in a Nutshell, Chapter 17, Reference: remove_header
- remove_sig() (Mail::Internet) : Perl in a Nutshell, Chapter 14, Reference: remove_sig
- removing : (see deleting)
- characters : Learning Perl, 15.5. Transliteration
- files : Learning Perl, 13.1. Removing a File
- HTML tags : Perl Cookbook, 20.6. Extracting or Removing HTML Tags
- last character
- Learning Perl, 2.6.3. The chop and chomp Functions
- Learning Perl on Win32 Systems, 15.5. Transliteration
- rename command (Windows NT) : Learning Perl on Win32 Systems, 13.2. Renaming a File
- rename script (example) : Perl Cookbook, 9.9. Renaming Files
- rename()
- Learning Perl, 1.5.15. Making Those Old Word Lists More Noticeable
- Learning Perl, 13.2. Renaming a File
- Learning Perl on Win32 Systems, 1.6.15. Making Those Old Word Lists More Noticeable
- Learning Perl on Win32 Systems, 13.2. Renaming a File
- Perl in a Nutshell, Chapter 5, Reference: rename
- Programming Perl, 3.2.122. rename
- examples of
- Learning Perl, A.12. Chapter 13, File and Directory Manipulation
- Learning Perl, 1.5.17. The Final Programs
- Net::FTP module : Perl in a Nutshell, Chapter 16, Reference: rename
- Rename() (Win32::Internet) : Perl in a Nutshell, Chapter 19, Reference: Rename
- renaming files
- Perl Cookbook, 9.9. Renaming Files
- Learning Perl, 13.2. Renaming a File
- examples of
- Learning Perl, 1.5.15. Making Those Old Word Lists More Noticeable
- Learning Perl on Win32 Systems, 1.6.15. Making Those Old Word Lists More Noticeable
- rep program (example) : Perl Cookbook, 15.12. Managing the Screen
- repeat function : Advanced Perl Programming, 14.5. Timers
- -repeatdelay option
- Scale widget : Perl in a Nutshell, 18.13. The Scale Widget
- Scrollbar widget : Perl in a Nutshell, 18.9. The Scrollbar Widget
- -repeatinterval option
- Scale widget : Perl in a Nutshell, 18.13. The Scale Widget
- Scrollbar widget : Perl in a Nutshell, 18.9. The Scrollbar Widget
- repetition (x) operator
- Programming Perl, 1.5.2. String Operators
- Programming Perl, 2.5.7. Multiplicative Operators
- replacing array elements : Programming Perl, 3.2.154. splice
- reply() (Mail::Internet) : Perl in a Nutshell, Chapter 14, Reference: reply
- report generating, example of : Learning Perl on Win32 Systems, 1.6.14. Listing the Secret Words
- Report() (Win32::EventLog) : Perl in a Nutshell, Chapter 19, Reference: Report
- reporting bugs in Perl : Perl in a Nutshell, 6.6. The perlbug Program
- reporting errors : (see errors; warning messages)
- reports, generating
- Learning Perl, 1.5.14. Listing the Secret Words
- Learning Perl, 11.1. What Is a Format?
- request() (LWP::UserAgent) : Perl in a Nutshell, 17.2.3. LWP::UserAgent
- Request() (Win32::Internet) : Perl in a Nutshell, Chapter 19, Reference: Request
- Request object (PerlScript) : Perl in a Nutshell, 20.2. Server-Side PerlScript
- request_method() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: request_method
- REQUEST_METHOD environment variable : Perl in a Nutshell, 9.4. CGI Environment Variables
- requests, HTTP
- HTTP::Request module
- Perl in a Nutshell, 17.1. LWP Overview
- Perl in a Nutshell, 17.3.1. HTTP::Request
- UserAgent object for
- Perl in a Nutshell, 17.1. LWP Overview
- Perl in a Nutshell, 17.2. The LWP Modules
- Perl in a Nutshell, 17.2.3. LWP::UserAgent
- require()
- Perl in a Nutshell, Chapter 5, Reference: require
- Programming Perl, 2.6.7. Global Declarations
- Programming Perl, 2.9.4. Global Special Arrays
- Programming Perl, 3.2.123. require
- Programming Perl, 5.2. Modules
- require statement
- Advanced Perl Programming, 6.2. Packages and Files
- Perl Cookbook, 12.0. Introduction
- Perl in a Nutshell, 7.2. Modules
- trapping errors in : Perl Cookbook, 12.2. Trapping Errors in require or use
- REs : (see regular expressions)
- reserved words : Programming Perl, 2.3.1. Variables
- reset()
- Perl in a Nutshell, Chapter 5, Reference: reset
- Programming Perl, 3.2.124. reset
- CGI.pm module : Perl in a Nutshell, Chapter 10, Reference: reset
- Net::POP3 module : Perl in a Nutshell, Chapter 14, Reference: reset
- Net::SMTP module : Perl in a Nutshell, Chapter 14, Reference: reset
- Win32::ChangeNotification module : Perl in a Nutshell, Chapter 19, Reference: reset
- Reset()
- Mail::POP3Client module
- Perl in a Nutshell, Chapter 14, Reference: Reset
- Perl in a Nutshell, 14.2.8.4. Deleting and undeleting messages
- Win32::OLE::Enum module : Perl in a Nutshell, Chapter 19, Reference: Reset
- resizable() (Frame widget) : Perl in a Nutshell, 18.18.1. Toplevel Methods
- resizing : (see size)
- -resolution option (Scale) : Perl in a Nutshell, 18.13. The Scale Widget
- Resolve() (Win32::Shortcut) : Perl in a Nutshell, Chapter 19, Reference: Resolve
- resources for further reading
- Advanced Perl Programming, Resources
- Perl in a Nutshell, 1.4. Perl Resources
- perldsc document : Advanced Perl Programming, 2. Implementing Complex Data Structures
- perltoot document : Advanced Perl Programming, 4.4.3. Closures Versus Objects
- resources, managing shared : Perl in a Nutshell, 19.11. Win32::NetResource
- Response object (PerlScript)
- Perl in a Nutshell, 20.2. Server-Side PerlScript
- Perl in a Nutshell, 20.2.2. The Response Object
- responses, HTTP : Perl in a Nutshell, 17.3.2. HTTP::Response
- restarting servers on demand : Perl Cookbook, 17.16. Restarting a Server on Demand
- restoring filehandles : Programming Perl, 7.2.54. SelectSaver - Save and Restore Selected Filehandle
- result : Learning Perl, 2.4. Scalar Operators
- Resume() (Win32::Process) : Perl in a Nutshell, Chapter 19, Reference: Resume
- ResumeService() (Win32::Service) : Perl in a Nutshell, Chapter 19, Reference: ResumeService
- retr() (Net::FTP) : Perl in a Nutshell, Chapter 16, Reference: retr
- Retrieve() (Mail::POP3Client)
- Perl in a Nutshell, Chapter 14, Reference: Retrieve
- Perl in a Nutshell, 14.2.8.3. Retrieving the message body
- retrieve() (Storable module) : Perl Cookbook, 11.13. Storing Data Structures to Disk
- retrieve_where function : Advanced Perl Programming, 11.1. Adaptor: An Introduction
- Adaptor::DBI module : Advanced Perl Programming, 11.3.2.2. Queries
- Adaptor::File module : Advanced Perl Programming, 11.3.1.3. Query processing
- retrieving email messages : Perl in a Nutshell, 14.1.3. Retrieving Email with Net::POP3
- retrieving URLs : Perl Cookbook, 20.1. Fetching a URL from a Perl Script
- return statement
- Perl Cookbook, 10.10. Returning Failure
- Perl in a Nutshell, Chapter 5, Reference: return
- Perl in a Nutshell, 4.7.2. Passing Arguments
- Programming Perl, 3.2.125. return
- return context, subroutines : Perl Cookbook, 10.6. Detecting Return Context
- return stack (retstack) : Advanced Perl Programming, 20.4.3. Inside Other Stacks
- return status, backwards for system() : Learning Perl, 14.1. Using system and exec
- return values
- Perl Cookbook, 10.8. Skipping Selected Return Values
- Perl Cookbook, 10.9. Returning More Than One Array or Hash
- Perl Cookbook, 10.10. Returning Failure
- Learning Perl, 1.5.9. Making It a Bit More Modular
- Programming Perl, 2.7. Subroutines
- from fork : Learning Perl, 14.4. Using fork
- print() and : Learning Perl, 6.3.1. Using print for Normal Output
- read() : Learning Perl, 17.4. Fixed-Length Random Access Databases
- select() : Learning Perl, 11.6.1. Using select() to Change the Filehandle
- subroutine, example of
- Learning Perl, 1.5.17. The Final Programs
- Learning Perl, 8.3. Return Values
- Learning Perl on Win32 Systems, 1.6.17. The Final Programs
- Learning Perl on Win32 Systems, 1.6.9. Making It a Bit More Modular
- Learning Perl on Win32 Systems, 8.3. Return Values
- tr operator : Learning Perl, 15.5. Transliteration
- Reuse option (IO::Socket::INET) : Perl in a Nutshell, 13.2.4. IO::Socket::INET Reference
- reusing code
- Programming Perl, 5.5.8. Thinking of Code Reuse
- Programming Perl, 8.4. Programming with Style
- reverse()
- Perl Cookbook, 1.6. Reversing a String by Word or Character
- Perl Cookbook, 4.10. Reversing an Array
- Learning Perl, 3.4.5. The reverse Function
- Perl in a Nutshell, Chapter 5, Reference: reverse
- Programming Perl, 3.2.126. reverse
- example of
- Learning Perl, A.2. Chapter 3, Arrays and List Data
- Learning Perl, A.5. Chapter 6, Basic I/O
- Learning Perl on Win32 Systems, A.2. Chapter 3, Arrays and List Data
- Learning Perl on Win32 Systems, A.5. Chapter 6, Basic I/O
- inverting hashes : Perl Cookbook, 5.8. Inverting a Hash
- reversing
- array elements : Perl Cookbook, 4.10. Reversing an Array
- words/characters in strings : Perl Cookbook, 1.6. Reversing a String by Word or Character
- revert() (HTTP::Cookies) : Perl in a Nutshell, Chapter 17, Reference: revert
- revhash_demo program (example) : Perl Cookbook, 13.15. Creating Magic Variables with tie
- rewinddir()
- Perl Cookbook, 9.5. Processing All Files in a Directory
- Perl in a Nutshell, Chapter 5, Reference: rewinddir
- Programming Perl, 3.2.127. rewinddir
- Programming Perl, 7.2.11. DirHandle - Supply Object Methods for Directory Handles
- right angle bracket : (see < > (angle brackets))
- right associativity : Learning Perl, 2.4.3. Operator Precedence and Associativity
- right justification : Programming Perl, 2.8.1. Format Variables
- right-shift (>>) operator : Programming Perl, 2.5.9. Shift Operators
- rindex()
- Learning Perl, A.14. Chapter 15, Other Data Transformation
- Learning Perl, 15.1. Finding a Substring
- Learning Perl on Win32 Systems, 15.1. Finding a Substring
- Perl in a Nutshell, Chapter 5, Reference: rindex
- Programming Perl, 3.2.128. rindex
- RLENGTH variable (awk) : Programming Perl, 6.4.2.2. a2p
- rm command, unlink() and : Learning Perl, 13.1. Removing a File
- rmdir function
- Perl Cookbook, 9.8. Removing a Directory and Its Contents
- Learning Perl, 13.4. Making and Removing Directories
- Learning Perl on Win32 Systems, 13.3. Making and Removing Directories
- Perl in a Nutshell, Chapter 5, Reference: rmdir
- Programming Perl, 3.2.129. rmdir
- Net::FTP module : Perl in a Nutshell, Chapter 16, Reference: rmdir
- Rmdir() (Win32::Internet) : Perl in a Nutshell, Chapter 19, Reference: Rmdir
- rmtree() : Programming Perl, 7.2.31. File::Path - Create or Remove a Series of Directories
- rmtree program (example) : Perl Cookbook, 9.8. Removing a Directory and Its Contents
- Robot User Agent : Perl in a Nutshell, 17.2.1. LWP::RobotUA sections
- robots for web traversal : Perl Cookbook, 20.11. Creating a Robot
- rollback() (DBI) : Perl in a Nutshell, Chapter 12, Reference: rollback
- roman() (Roman module) : Perl Cookbook, 2.6. Working with Roman Numerals
- Roman module : Perl Cookbook, 2.6. Working with Roman Numerals
- roman numerals : Perl Cookbook, 2.6. Working with Roman Numerals
- root directory (/)
- Perl Cookbook, 9.0. Introduction
- Programming Perl, 3.2.17. chroot
- rounding floating-point numbers : Perl Cookbook, 2.3. Rounding Floating-Point Numbers
- routines : (see subroutines)
- row : (see records)
- -row option (grid manager) : Perl in a Nutshell, 18.2.2. The grid Geometry Manager
- rows() (DBI) : Perl in a Nutshell, Chapter 12, Reference: rows
- -rowspan option (grid manager) : Perl in a Nutshell, 18.2.2. The grid Geometry Manager
- RPC (Remote Procedure Call)
- Advanced Perl Programming, 13.2. Remote Procedure Calls (RPC)
- Advanced Perl Programming, 17.1. On Code Generation
- $RS
- Learning Perl, 6.1. Input from STDIN
- Learning Perl, 14.2. Using Backquotes
- Learning Perl on Win32 Systems, 6.1. Input from STDIN
- Perl in a Nutshell, 4.4.1. Global Special Variables
- Programming Perl, 2.9.3. Global Special Variables
- Programming Perl, 6.1.2. Switches
- Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables
- RSTART variable (awk) : Programming Perl, 6.4.2.2. a2p
- RTTI (Run Time Type Identification) : Advanced Perl Programming, 6.9.3. C/C++
- rules() (LWP::RobotUA) : Perl in a Nutshell, Chapter 17, Reference: rules
- -run option (perlcc) : Perl in a Nutshell, 3.4. The Perl Compiler
- run time, loading modules at : Perl Cookbook, 12.3. Delaying use Until Run Time
- run-time binding : Advanced Perl Programming, 7.2.4. The Need for Polymorphism
- run-time errors
- (see errors)
- (see exceptions)
- run-time evaluation
- (see also eval function)
- Advanced Perl Programming, B.6. Dynamic Behavior
- Advanced Perl Programming, 5. Eval
- Advanced Perl Programming, Language Syntax
- Programming Perl, 7.2.48.8. Run-time overloading
- in other languages : Advanced Perl Programming, 5.7. Eval in Other Languages
- run-time scoping : Perl Cookbook, 10.13. Saving Global Values
- RUNAT attribute (<SCRIPT>) : Perl in a Nutshell, 20.2. Server-Side PerlScript
- running : (see executing)
- runtests() : Programming Perl, 7.2.66. Test::Harness - Run Perl Standard Test Scripts with Statistics
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