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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


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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