Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Explanatory note

R

R command (debugger) : Debugger Commands

-R file test operator : Named Unary and File Test Operators

-r file test operator : Named Unary and File Test Operators

rand function : rand

random numbers

rand

srand

range (..) operator

Range Operator

Awk Traps

$rdev file statistic : stat

read function : read

readdir function

readdir

DirHandle--Supply Object Methods for Directory Handles

Time Efficiency

reading

data via low-level system call : sysread

file backwards : Examples

input (awk) : Awk Traps

permissions for processes : IPC::Open2--Open a Process for Both Reading and Writing

shared memory segment ID : shmread

Readline module : Readline Support

readlink function : readlink

ReadlKey module : Readline Support

ready file descriptors : select (ready file descriptors)

real gid (see $( variable)

real uid (see $<; variable)

real values

testing for with defined : defined

$REAL_GROUP_ID (see $( variable)

$REAL_USER_ID (see $<; variable)

record delimiter (see $/ variable)

records (see $/ variable)

input, separator for (see $/ variable)

output, separator for (see $\ variable)

of various data strcutures : More Elaborate Records

records, variable-length : Formats

recursive

open functions : open

use of subroutines : Subroutines

recv function : recv

redo operator

Loop control

redo

ref function : ref

ref operator : Other Tricks You Can Do with Hard References

reference

passing : Passing References

references : What Is a Reference?

checking for : ref

circular, and memory : A Note on Garbage Collection

to filehandles : Filehandle Referencers

multidimensional arrays and : A Brief Tutorial: Manipulating Lists of Lists

to objects : Using Object Methods

objects as : An Object Is Simply a Referenced Thingy

use strict 'refs' : strict--Restrict Unsafe Constructs

regexes (see regular expressions)

regexps (see regular expressions)

regular expressions

Regular Expressions

Regular Expressions

backreferences : Backreferences

character classes : Regular Expressions

extension syntax for : Regular expression extensions

matching precedence : The rules of regular expression matching

special variables for : Regular Expression Special Variables

relational operators (see comparison operators)

Relational Operators

removing (see deleting)

rename function : rename

repetition (x) operator

String Operators

Multiplicative Operators

replacing array elements : splice

require function : Modules

require operator

Global Declarations

Global Special Arrays

require

REs (see regular expressions)

reserved words : Variables

reset function : reset

restoring

filehandles : SelectSaver--Save and Restore Selected Filehandle

return function : return

return value subroutine : Subroutines

reusing code

Thinking of Code Reuse

Programming with Style

reverse function : reverse

rewinddir function

rewinddir

DirHandle--Supply Object Methods for Directory Handles

right angle bracket (see >)

right justification : Format Variables

right-shift (>>) operator : Shift Operators

rindex function : rindex

RLENGTH variable (awk) : a2p

rmdir function : rmdir

rmtree( ) : File::Path--Create or Remove a Series of Directories

root directory

redefining : chroot

routines (see subroutines)

row (see record)

$RS (see $/ variable)

RSTART variable (awk) : a2p

running (see executing)

runtests( ) : Test::Harness--Run Perl Standard Test Scripts with Statistics

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Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Explanatory note

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