Symbols & Numbers | 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

Index: Symbols & Numbers

-- autodecrement operator: 10.6. Autoincrement and Autodecrement

` ` backquotes/backticks: 1.5. A Whirlwind Tour of Perl

14.4. Using Backquotes to Capture Output

{ } curly braces (see curly braces)

- hyphen: 6.2. Input from the Diamond Operator

8.1. Character Classes

( ) parentheses (see parentheses)

' ' single quotes: 2.3.1. Single-Quoted String Literals

[ ] square brackets: 7.3. A Pattern Test Program

8.1. Character Classes

- subtraction operator: 2.2.5. Numeric Operators

+ addition operator: 2.2.5. Numeric Operators

.= append operator: 2.5.3. Binary Assignment Operators

@_ array variable: 4.5. Arguments

= assignment operator: 2.5.2. Scalar Assignment

@ at-sign: 3.4. List Assignment

++ autoincrement operator: 10.6. Autoincrement and Autodecrement

\\\\ backslash: 2.3.1. Single-Quoted String Literals

8.4.1. Backreferences

=~ binding operator: 9.3. The Binding Operator, =~

^ caret anchor: 8.3. Anchors

, comma: 5.2.3. The Big Arrow

$_ default variable (see default variable)

/ division operator: 2.2.5. Numeric Operators

$ dollar sign (see dollar sign)

. dot (see dot)

./ dot and slash: 1.4.1. A Simple Program

.. dot-dot: 13.3. Links and Files

-e command-line option: 16.4.1. In-place Editing from the Command Line

-eval option, find2perl command and: B.26. Converting find Command Lines to Perl

** exponentiation operator: 2.2.5. Numeric Operators

_ _FILE_ _ and _ _LINE_ _ tokens: 11.3. Fatal Errors with die

_ filehandle: 11.6.5. Using the Special Underscore Filehandle

-> little arrow: 5.2.3. The Big Arrow

13.8.3. The File::Spec Module

-i.bak command-line option: 16.4.1. In-place Editing from the Command Line

#! line: 1.4.2. What's Inside That Program?

1.5. A Whirlwind Tour of Perl

% modulus operator: 2.2.5. Numeric Operators

17.2. Picking Items from a List with grep

* multiplication operator: 2.2.5. Numeric Operators

-n command-line option: 16.4.1. In-place Editing from the Command Line

! negation operator (see negation operator)

. operator: 2.3.3. String Operators

-p command-line option: 16.4.1. In-place Editing from the Command Line

% percent sign (see percent sign)

| pipe: 11.1. What Is a Filehandle?

14.5. Processes as Filehandles

+ plus sign: 7.2.2. Simple Quantifiers

# pound sign: 1.4.2. What's Inside That Program?

? question mark: 7.2.2. Simple Quantifiers

**= raise to the power of operator: 2.5.3. Binary Assignment Operators

.. range operator: 3.3. List Literals

; semicolon (see semicolon)

* star: 7.2.2. Simple Quantifiers

. string concatenate operator: 2.5.3. Binary Assignment Operators

?\: ternary operator: 10.9.2. The Ternary Operator, ?:

~ tilde: 16.4. Variable-length (Text) Databases

~ tilde-prefix: 12.1. Moving Around the Directory Tree

_ underscore: 2.2.3. Integer Literals

4.10. The use strict Pragma

$! variable: 11.3. Fatal Errors with die

\\| vertical bar: 7.2.4. Alternatives

-w option: 2.4. Perl's Built-in Warnings

16.4.1. In-place Editing from the Command Line

vs. warnings pragma: B.6.6. The warnings Pragma

& ampersand: 4.3. Invoking a Subroutine

4.11.1. Omitting the Ampersand

$& variable: 9.5.2. The Automatic Match Variables

&& operator: 10.9. Logical Operators

10.9.3. Control Structures Using Partial-Evaluation Operators

&max subroutine: 4.5. Arguments

4.8.1. A Better &max Routine

@ARGV array: 6.3. The Invocation Arguments

$ARGV variable: 6.2. Input from the Diamond Operator

$atime (timestamp): 11.6.1. The stat and lstat Functions

changing: 13.7. Changing Timestamps

\\\\B nonword-boundary anchor: 8.3.1. Word Anchors

\\\\b word-boundary anchor: 8.3.1. Word Anchors

$ctime (timestamp): 11.6.1. The stat and lstat Functions

changing: 13.7. Changing Timestamps

%d conversion: 6.5. Formatted Output with printf

\\\\d shortcut: 8.1.1. Character Class Shortcuts

$dev (device number): 11.6.1. The stat and lstat Functions

\\\\E shortcut: 9.6.5. Case Shifting

__END__ marker: 10.8.1. The last Operator

%ENV hash: 14.3. The Environment Variables

%f conversion: 6.5. Formatted Output with printf

%g conversion: 6.5. Formatted Output with printf

/g modifier, s/// substitution operator and: 9.6.1. Global Replacements with /g

$gid (see group-ID)

=> big arrow: 5.2.3. The Big Arrow

17.4. Unquoted Hash Keys

> greater-than sign: 11.2. Opening a Filehandle

`Hello, world' program: 1.4.1. A Simple Program

/i modifier: 9.2.1. Case-insensitive Matching with /i

s/// substitution operator and: 9.6.3. Option Modifiers

$^I variable: 16.4. Variable-length (Text) Databases

$ino (inode number): 11.6.1. The stat and lstat Functions

\\\\l shortcut: 9.6.5. Case Shifting

@lines array variable: 1.5. A Whirlwind Tour of Perl

< less-than sign: 11.2. Opening a Filehandle

/m option: 17.5.2. Matching Multiple-line Text

$mode: 11.6.1. The stat and lstat Functions

$mtime (timestamp): 11.6.1. The stat and lstat Functions

changing: 13.7. Changing Timestamps

\\\\n shortcut: 1.4.2. What's Inside That Program?

within a single-quoted string: 2.3.1. Single-Quoted String Literals

.new files, renaming from .old files: 13.2. Renaming Files

$nlink (number of links): 11.6.1. The stat and lstat Functions

$now variable: 14.4. Using Backquotes to Capture Output

.old files, renaming to .new files: 13.2. Renaming Files

.plx file extension: 1.4.1. A Simple Program

.pm files: 7.1. What Are Regular Expressions?

$" variable: 3.5. Interpolating Arrays into Strings

"money numbers" (see decimals)

"" double quotes (see double quotes)

"short-circuit" logical operators: 10.9. Logical Operators

%s conversion: 6.5. Formatted Output with printf

/s modifier: 9.2.2. Matching Any Character with /s

s/// substitution operator and: 9.6.3. Option Modifiers

\\\\s shortcut: 8.1.1. Character Class Shortcuts

$size: 11.6.1. The stat and lstat Functions

\\\\u shortcut: 9.6.5. Case Shifting

$uid (see user-ID, numeric)

/usr/bin/perl: 1.4.2. What's Inside That Program?

/usr/local/bin/perl: 1.4.2. What's Inside That Program?

\\\\w characters: 8.3.1. Word Anchors

\\\\w shortcut: 8.1.1. Character Class Shortcuts

`wimla,' diamond operator and: 6.2. Input from the Diamond Operator

Ú Ú forward slashes: 7.2. Using Simple Patterns

9.1. Matches with m//

Copyright © 2002 O'Reilly & Associates, Inc. All Rights Reserved.