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

Symbols

& (ampersand)

AND bitwise operator: 4.5.10. Bitwise Operators

calling subroutines: 4.7.1. Calling Subroutines

in encoded URLs: 9.2. URL Encoding

prototype symbol: 4.7.5. Prototypes

&&= (assignment) operator: 4.5.6. Assignment Operators

&= (assignment) operator: 4.5.6. Assignment Operators

<> (angle brackets)

<=> (comparison) operator: 4.5.4.2. Equality operators

<...> (line-input) operator: 4.9. Filehandles

<<= (assignment) operator: 4.5.6. Assignment Operators

<< debugger commands, and: 6.2. Debugger Commands

< (less-than) operator: 4.5.4.1. Relational operators

<= (less-than-or-equal) operator: 4.5.4.1. Relational operators

>>= (assignment) operator: 4.5.6. Assignment Operators

> (greater-than) operator: 4.5.4.1. Relational operators

>= (greater-than-or-equal) operator: 4.5.4.1. Relational operators

>> (to open file for appending): 4.9. Filehandles

* (asterisk)

multiplication operator: 4.5.3. Arithmetic Operators

prototype symbol (typeglob): 4.7.5. Prototypes

regular expression metacharacter: 4.6.2. Regular Expression Syntax

** (exponentiation) operator: 4.5.3. Arithmetic Operators

*= (assignment) operator: 4.5.6. Assignment Operators

@ (at sign)

@_ array: 4.7.2. Passing Arguments

dereferencing with: 4.8.2. Dereferencing

format fieldholders: 4.12. Formats

prototype symbol (list): 4.7.5. Prototypes

signifying arrays: 4.2.5.1. Arrays

(backslash)

creating references: 4.8.1. Creating References

reference creation operator: 4.5.2. Unary Operators

! (bang)

!= (not equal to) operator: 4.5.4.2. Equality operators

CPAN.pm eval command: 2.4.4. Installing Modules with the CPAN Module

logical negation operator: 4.5.2. Unary Operators

Perl debugger command: 6.2. Debugger Commands

!! Perl debugger command: 6.2. Debugger Commands

{} (braces)

delimiting statement blocks: 4.3. Statements

regular expression quantifiers: 4.6.6. Quantifiers

{{ Perl debugger command: 6.2. Debugger Commands

{ Perl debugger command: 6.2. Debugger Commands

[] (brackets)

Perl debugger command: 6.2. Debugger Commands

regular expression metacharacter: 4.6.4. Character Classes

^ (caret)

in [...] construct: 4.6.4. Character Classes

grid geometry manager placeholder: 21.2.2. The grid Geometry Manager

regular expression metacharacter: 4.6.2. Regular Expression Syntax

XOR bitwise operator: 4.5.10. Bitwise Operators

^= (assignment) operator: 4.5.6. Assignment Operators

: (colon), in package names: 7.1. Namespaces and Packages

, (comma)

number legibility without: 4.2.1. Numbers

operator: 4.5.11.3. Comma operator

$ (dollar sign)

dereferencing with: 4.8.2. Dereferencing

prototype symbol (scalar): 4.7.5. Prototypes

regular expression metacharacter: 4.6.2. Regular Expression Syntax

signifying scalar variables: 4.2.5. Variables

$ variables

$' variable: 4.4.5. Regular Expression Special Variables

$1, $2, $3, ...: 4.4.5. Regular Expression Special Variables

4.6.7. Pattern Match Variables

$& variable: 4.4.5. Regular Expression Special Variables

$< variable: 4.4.1. Global Special Variables

$> variable: 4.4.1. Global Special Variables

$@ variable: 4.4.1. Global Special Variables

$ variable: 4.4.1. Global Special Variables

$` variable: 4.4.5. Regular Expression Special Variables

$! variable: 4.4.1. Global Special Variables

$[ variable: 4.4.1. Global Special Variables

$] variable: 4.4.1. Global Special Variables

$^ variable: 4.4.6. Filehandle Special Variables

$^A variable: 4.4.1. Global Special Variables

$^D variable: 4.4.1. Global Special Variables

$^E variable: 4.4.1. Global Special Variables

$^F variable: 4.4.1. Global Special Variables

$^H variable: 4.4.1. Global Special Variables

$^I variable: 4.4.1. Global Special Variables

$^L variable: 4.4.1. Global Special Variables

$^M variable: 4.4.1. Global Special Variables

$^N variable: 4.4.5. Regular Expression Special Variables

$^O variable: 4.4.1. Global Special Variables

$^P variable: 4.4.1. Global Special Variables

$: variable: 4.4.1. Global Special Variables

$, variable: 4.4.1. Global Special Variables

$$ variable: 4.4.1. Global Special Variables

$. variable: 4.4.1. Global Special Variables

$= variable: 4.4.6. Filehandle Special Variables

$# variable: 4.4.1. Global Special Variables

$- variable: 4.4.6. Filehandle Special Variables

$( variable: 4.4.1. Global Special Variables

$) variable: 4.4.1. Global Special Variables

$% variable: 4.4.6. Filehandle Special Variables

$+ variable: 4.4.5. Regular Expression Special Variables

$? variable: 4.4.1. Global Special Variables

$" variable: 4.4.1. Global Special Variables

$; variable: 4.4.1. Global Special Variables

$/ variable: 4.4.1. Global Special Variables

$~ variable: 4.4.6. Filehandle Special Variables

$_ ($ARG) variable: 4.4.1. Global Special Variables

$0 variable: 4.4.1. Global Special Variables

$| variable: 4.4.6. Filehandle Special Variables

$^T variable: 4.4.1. Global Special Variables

$^W variable: 4.4.1. Global Special Variables

$^X variable: 4.4.1. Global Special Variables

. (dot)

concatenation operator: 4.5.11.4. String operator

Perl debugger command: 6.2. Debugger Commands

regular expression metacharacter: 4.6.2. Regular Expression Syntax

.. (range) operator: 4.5.11.1. Range operator

... (range) operator: 4.5.11.1. Range operator

.= (assignment) operator: 4.5.6. Assignment Operators

= (equal sign)

== (equal to) operator: 4.5.4.2. Equality operators

assignment operator: 4.2.5. Variables

4.5.6. Assignment Operators

for embedded documentation (pod): 4.1. Program Structure

in hash name/value pairs: 4.2.5.2. Hashes

for pod commands: 4.13. Pod

=> operator, defining key/value pairs: 4.2.5.2. Hashes

4.5.11.3. Comma operator

/ (forward slash): 2.4.4. Installing Modules with the CPAN Module

# (hash mark)

#! (shebang) line: 3. The Perl Executable

for comments: 4.1. Program Structure

format fieldholder: 4.12. Formats

- (hyphen)

arithmetic negation operator: 4.5.2. Unary Operators

grid geometry manager placeholder: 21.2.2. The grid Geometry Manager

Perl debugger command: 6.2. Debugger Commands

in [...] construct: 4.6.4. Character Classes

-> (arrow) operator: 4.5.1. The Arrow Operator

dereferencing with: 4.8.2.1. Arrow dereferencing

-- (autodecrement) operator: 4.5.5. Autoincrement and Autodecrement

( ) (parentheses)

around function arguments: 5. Function Reference

operator precedence and: 4.5. Operators

regular expression metacharacter: 4.6.2. Regular Expression Syntax

(?...) extended regular expression syntax: 4.6.8. Extended Regular Expressions

% (percent sign)

%SIG: 4.10. Signals

dereferencing with: 4.8.2. Dereferencing

modulus operator: 4.5.3. Arithmetic Operators

prototype symbol (hash): 4.7.5. Prototypes

signifying variable type: 4.2.5.2. Hashes

%= (assignment) operator: 4.5.6. Assignment Operators

+ (plus)

1: 4.5.5. Autoincrement and Autodecrement

regular expression metacharacter: 4.6.2. Regular Expression Syntax

unary operator: 4.5.2. Unary Operators

+= (assignment) operator: 4.5.6. Assignment Operators

? (question mark)

regular expression metacharacter: 4.6.2. Regular Expression Syntax

?: (conditional) operator: 4.5.11.2. Conditional operator

?...? pattern match operator: 4.6.1. Pattern-Matching Operators

?...? Perl debugger command: 6.2. Debugger Commands

; (semicolon)

ending Perl statements: 4.1. Program Structure

in prototype declarations: 4.7.5. Prototypes

/ (slash)

division operator: 4.5.3. Arithmetic Operators

encoding in URLs: 9.2. URL Encoding

/= (assignment) operator: 4.5.6. Assignment Operators

/.../ pattern match operator: 4.6. Regular Expressions

/.../ Perl debugger command: 6.2. Debugger Commands

~ (tilde)

bitwise negation operator: 4.5.2. Unary Operators

suppressing output whitespace: 4.12. Formats

~~ to print strings in fields: 4.12. Formats

_ (underscore)

_ _END_ _ constant: 4.4.4. Global Special Constants

_ _END_ _ marker: 8.5. AutoLoader

_ _FILE_ _ constant: 4.4.4. Global Special Constants

filehandle: 4.4.3. Global Special Filehandles

improving number legibility: 4.2.1. Numbers

_ _LINE_ _ constant: 4.4.4. Global Special Constants

_ _PACKAGE_ _ constant: 4.4.4. Global Special Constants

| (vertical bar)

format fieldholders: 4.12. Formats

OR bitwise operator: 4.5.10. Bitwise Operators

Perl debugger command: 6.2. Debugger Commands

regular expression metacharacter: 4.6.2. Regular Expression Syntax

|= (assignment) operator: 4.5.6. Assignment Operators

|| Perl debugger command: 6.2. Debugger Commands

||= (assignment) operator: 4.5.6. Assignment Operators

Numbers

038 (octal value) sequence: 4.6.3. Escaped Sequences

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