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Index: Symbols & Numbers

Symbols

• & (ampersand)
• • AND bitwise operator: Bitwise Operators
  • calling subroutines: Calling Subroutines
  • in encoded URLs: URL Encoding
  • prototype symbol: Prototypes
  • &&= (assignment) operator: Assignment Operators
  • &= (assignment) operator: Assignment Operators
• <> (angle brackets)
• • <=> (comparison) operator: Equality operators
  • <...> (line-input) operator: Filehandles
  • <<= (assignment) operator: Assignment Operators
  • << debugger commands, and: Debugger Commands
  • < (less-than) operator: Relational operators
  • <= (less-than-or-equal) operator: Relational operators
  • >>= (assignment) operator: Assignment Operators
  • > (greater-than) operator: Relational operators
  • >= (greater-than-or-equal) operator: Relational operators
  • >> (to open file for appending): Filehandles
• * (asterisk)
• • multiplication operator: Arithmetic Operators
  • prototype symbol (typeglob): Prototypes
  • regular expression metacharacter: Regular Expression Syntax
  • ** (exponentiation) operator: Arithmetic Operators
  • *= (assignment) operator: Assignment Operators
• @ (at sign)
• • @_ array: Passing Arguments
  • dereferencing with: Dereferencing
  • format fieldholders: Formats
  • prototype symbol (list): Prototypes
  • signifying arrays: Arrays
• (backslash)
• • creating references: Creating References
  • reference creation operator: Unary Operators
• ! (bang)
• • != (not equal to) operator: Equality operators
  • CPAN.pm eval command: Installing Modules with the CPAN Module
  • logical negation operator: Unary Operators
  • Perl debugger command: Debugger Commands
  • !! Perl debugger command: Debugger Commands
• {} (braces)
• • delimiting statement blocks: Statements
  • regular expression quantifiers: Quantifiers
  • {{ Perl debugger command: Debugger Commands
  • { Perl debugger command: Debugger Commands
• [] (brackets)
• • Perl debugger command: Debugger Commands
  • regular expression metacharacter: Character Classes
• ^ (caret)
• • in [...] construct: Character Classes
  • grid geometry manager placeholder: The grid Geometry Manager
  • regular expression metacharacter: Regular Expression Syntax
  • XOR bitwise operator: Bitwise Operators
  • ^= (assignment) operator: Assignment Operators
• : (colon), in package names: Namespaces and Packages
• , (comma)
• • number legibility without: Numbers
  • operator: Comma operator
• $ (dollar sign)
• • dereferencing with: Dereferencing
  • prototype symbol (scalar): Prototypes
  • regular expression metacharacter: Regular Expression Syntax
  • signifying scalar variables: Variables
• $ variables
• • $' variable: Regular Expression Special Variables
  • $1, $2, $3, ...: Regular Expression Special Variables
  • • Pattern Match Variables
  • $& variable: Regular Expression Special Variables
  • $< variable: Global Special Variables
  • $> variable: Global Special Variables
  • $@ variable: Global Special Variables
  • $ variable: Global Special Variables
  • $` variable: Regular Expression Special Variables
  • $! variable: Global Special Variables
  • $[ variable: Global Special Variables
  • $] variable: Global Special Variables
  • $^ variable: Filehandle Special Variables
  • $^A variable: Global Special Variables
  • $^D variable: Global Special Variables
  • $^E variable: Global Special Variables
  • $^F variable: Global Special Variables
  • $^H variable: Global Special Variables
  • $^I variable: Global Special Variables
  • $^L variable: Global Special Variables
  • $^M variable: Global Special Variables
  • $^N variable: Regular Expression Special Variables
  • $^O variable: Global Special Variables
  • $^P variable: Global Special Variables
  • $: variable: Global Special Variables
  • $, variable: Global Special Variables
  • $$ variable: Global Special Variables
  • $. variable: Global Special Variables
  • $= variable: Filehandle Special Variables
  • $# variable: Global Special Variables
  • $- variable: Filehandle Special Variables
  • $( variable: Global Special Variables
  • $) variable: Global Special Variables
  • $% variable: Filehandle Special Variables
  • $+ variable: Regular Expression Special Variables
  • $? variable: Global Special Variables
  • $" variable: Global Special Variables
  • $; variable: Global Special Variables
  • $/ variable: Global Special Variables
  • $~ variable: Filehandle Special Variables
  • $_ ($ARG) variable: Global Special Variables
  • $0 variable: Global Special Variables
  • $| variable: Filehandle Special Variables
  • $^T variable: Global Special Variables
  • $^W variable: Global Special Variables
  • $^X variable: Global Special Variables
• . (dot)
• • concatenation operator: String operator
  • Perl debugger command: Debugger Commands
  • regular expression metacharacter: Regular Expression Syntax
  • .. (range) operator: Range operator
  • ... (range) operator: Range operator
  • .= (assignment) operator: Assignment Operators
• = (equal sign)
• • == (equal to) operator: Equality operators
  • assignment operator: Variables
  • • Assignment Operators
  • for embedded documentation (pod): Program Structure
  • in hash name/value pairs: Hashes
  • for pod commands: Pod
  • => operator, defining key/value pairs: Hashes
  • • Comma operator
• / (forward slash): Installing Modules with the CPAN Module
• # (hash mark)
• • #! (shebang) line: The Perl Executable
  • for comments: Program Structure
  • format fieldholder: Formats
• - (hyphen)
• • arithmetic negation operator: Unary Operators
  • grid geometry manager placeholder: The grid Geometry Manager
  • Perl debugger command: Debugger Commands
  • in [...] construct: Character Classes
  • -> (arrow) operator: The Arrow Operator
  • • dereferencing with: Arrow dereferencing
  • -- (autodecrement) operator: Autoincrement and Autodecrement
• ( ) (parentheses)
• • around function arguments: Function Reference
  • operator precedence and: Operators
  • regular expression metacharacter: Regular Expression Syntax
  • (?...) extended regular expression syntax: Extended Regular Expressions
• % (percent sign)
• • %SIG: Signals
  • dereferencing with: Dereferencing
  • modulus operator: Arithmetic Operators
  • prototype symbol (hash): Prototypes
  • signifying variable type: Hashes
  • %= (assignment) operator: Assignment Operators
• + (plus)
• • 1: Autoincrement and Autodecrement
  • regular expression metacharacter: Regular Expression Syntax
  • unary operator: Unary Operators
  • += (assignment) operator: Assignment Operators
• ? (question mark)
• • regular expression metacharacter: Regular Expression Syntax
  • ?: (conditional) operator: Conditional operator
  • ?...? pattern match operator: Pattern-Matching Operators
  • ?...? Perl debugger command: Debugger Commands
• ; (semicolon)
• • ending Perl statements: Program Structure
  • in prototype declarations: Prototypes
• / (slash)
• • division operator: Arithmetic Operators
  • encoding in URLs: URL Encoding
  • /= (assignment) operator: Assignment Operators
  • /.../ pattern match operator: Regular Expressions
  • /.../ Perl debugger command: Debugger Commands
• ~ (tilde)
• • bitwise negation operator: Unary Operators
  • suppressing output whitespace: Formats
  • ~~ to print strings in fields: Formats
• _ (underscore)
• • _ _END_ _ constant: Global Special Constants
  • _ _END_ _ marker: AutoLoader
  • _ _FILE_ _ constant: Global Special Constants
  • filehandle: Global Special Filehandles
  • improving number legibility: Numbers
  • _ _LINE_ _ constant: Global Special Constants
  • _ _PACKAGE_ _ constant: Global Special Constants
• | (vertical bar)
• • format fieldholders: Formats
  • OR bitwise operator: Bitwise Operators
  • Perl debugger command: Debugger Commands
  • regular expression metacharacter: Regular Expression Syntax
  • |= (assignment) operator: Assignment Operators
  • || Perl debugger command: Debugger Commands
  • ||= (assignment) operator: Assignment Operators

Numbers

• 038 (octal value) sequence: Escaped Sequences