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

Index: N

• \n: Newlines
• • (see also newlines)
• -n (loop) command-line switch: Switches
• named
• • character: String Literals
  • character, metasymbol for: Specific Characters
  • characters, inserting: Effects of Character Semantics
  • pipes: Named Pipes
• named unary operators: Filename Globbing Operator
• • Named Unary and File Test Operators
  • listing of: Named Unary and File Test Operators
• names: Names
• • arrays: Variables
  • attributes, subroutines: The locked and method Attributes
  • capitalization conventions: Names
  • classes, distinguishing from subroutines: Package-Quoted Classes
  • commands: Verbs
  • constructors: Initializers
  • file: Other Literal Tokens
  • for files==>filenames: rename
  • format (see format names)
  • formats associated with filehandles: Formats
  • functions: Verbs
  • getting from network addresses: gethostbyaddr
  • group names: getgrnam
  • hashes: Variables
  • hashes, storing in: Pluralities
  • hostnames, translating to network addresses: gethostbyname
  • identifiers vs.: Names
  • labels and filehandles: Names
  • login (see login names)
  • lookups of: Name Lookups
  • methods, tied variables: Tied Variables
  • modules: Using Modules
  • • capitalization in: Using Modules
  • modules/packages: Developing with Style
  • network addresses, getting from: getnetbyaddr
  • packages: Packages
  • parameters, not requiring: Tricks with Parameter Lists
  • ports, getting from number: getservbyname
  • program (see $0 variable)
  • protocols, getting from port numbers: getservbyport
  • protocols, translating to/from numbers: getprotobyname
  • scope, confining to: Scoped Variable Declarations
  • signals: Signals
  • subroutines: Syntax
  • • capitalization in: Syntax
  • symbol tables: Symbol Tables
  • temporary files, generating: Temporary Files
  • translating to network addresses: getnetbyname
  • typeglobs: Typeglobs and Filehandles
  • users: getpwnam
  • variable: Developing with Style
  • variables: Variable Syntax
  • • Variables
• namespace (see also packages)
• • encapsulation based on: Tie Modules on CPAN
  • modules and: Module Privacy and the Exporter
• namespaces: Names
• • access, restricting with Safe module: Restricting namespace access
  • for packages: Simplicities
• naming, socket: bind
• natural languages: Natural and Artificial Languages
• • environment variables controlling Perl handling of: Environment Variables
• NDBM_File module: DBM Interfaces
• ne operator: Universal Blunders
• negation
• • arithmetic (-)operator: Ideographic Unary Operators
  • bitwise (~) operator: Ideographic Unary Operators
  • character classes: Custom Character Classes
  • • Classic Perl Character Class Shortcuts
  • logical (!) operator: Ideographic Unary Operators
  • of character class: Quantifiers
  • POSIX character classes: POSIX-Style Character Classes
• negation operator (!), overloading: Overloadable Operators
• negative array subscripts, counting from end of array: Previous Perl Traps
• negative lookahead assertions: The Little Engine That /Could(n't)?/
• • Lookaround Assertions
• negative subscripts in Perl: Built-in Data Types
• nested
• • arrays: Arrays of Arrays
  • data structures: Complexities
  • data structures, printed: Display
  • destruction: Instance Destructors
  • lists: Arrays of Arrays
  • subroutines: Nested subroutines
• Net::hostent module: gethostent
• • Networking and Interprocess Communication
  • Class::Struct, using to create objects and accesors: Class::Struct
• Net::netent module: getnetbyaddr
• • Networking and Interprocess Communication
• netnews: The CPAN modules Directory
• • (see also Usenet)
• Net::Ping module: Networking and Interprocess Communication
• Net::proto module: getprotobynumber
• Net::protoent module: Networking and Interprocess Communication
• Net::servent module: Networking and Interprocess Communication
• networking
• • clients: Networking Clients
  • modules for: Networking and Interprocess Communication
  • modules implementing network protocols: The CPAN modules Directory
  • network addresses, translating to names: getnetbyaddr
  • • gethostbyaddr
  • network filesystems (see NFS)
  • network information, functions for retrieving: Perl Functions by Category
  • servers: Networking Servers
  • services, Perl module for interacting with: The CPAN modules Directory
  • Win32 network modules: Microsoft-Related Modules
• networking modules: Sockets
• networks file (see /etc/networks file)
• new method: Thread creation
• • new
• newlines: Molecules
• • blank lines, truth values and: The while and until statements
  • chomp function, deleting with: chomp
  • dot (.) metacharacter, matching: Wildcard Metasymbols
  • in filenames, security risks of: Cleaning Up Your Environment
  • Perl program portability and: Newlines
  • removing: Filehandles
  • in string literals: String Literals
  • strings containing, matches against: Pattern Modifiers
• newsgroups: Usenet Newsgroups
• next, used in a do while: Bare Blocks
• next command, do {} while construct, not taking: Traps
• next operator: Breaking out: next and last
• • while and until Statements
  • Loop Control
  • Loop Control
  • next
  • exiting once-through blocks with: Bare Blocks
  • next if construct: Time Efficiency
• NFA (nondeterministic finite-state automaton): The Little Engine That /Could(n't)?/
• • limitations of: Sockets
• $nlink file statistic: stat
• \NNN metasymbol: Specific Characters
• no declarations: Global Declarations
• • Pragmas
  • Using Modules
  • Magically Banishing $_
  • no
• nomethod overloading key: When an Overload Handler Is Missing (nomethod and fallback)
• nonbacktracking subpatterns: Nonbacktracking Subpatterns
• nondeterministic finite-state automaton (NFA): The Little Engine That /Could(n't)?/
• noninteractive mode, putting debugger in: Unattended Execution
• not (!) operator: Ideographic Unary Operators
• not equal to (!=) operator: Equality Operators
• notational convenience, tied arrays: Notational Convenience
• nouns: Natural and Artificial Languages
• • packages, handling of: Simplicities
• novice developers, common mistakes of: Common Goofs for Novices
• null
• • filehandle ;angle operator and: Line Input (Angle) Operator
  • list: List Values and Arrays
• null device, Unix: Creative Filehandles
• null list, assigning to arrays: Array Length
• null values ("" or 0): Singularities
• number, line (see __LINE__ token)
• number width: Endianness and Number Width
• numbered variables: Special Variables in Alphabetical Order
• numbers: Variable Syntax
• • arrays, storing in: Pluralities
  • bitwise operators, working with: Bitwise Operators
  • command (see command history, debugger and)
  • commas, inserting into: Format Variables
  • comparison operators for: Some Numeric and String Comparison Operators
  • converting nonnumeric variables to: Overloadable Operators
  • d for digit=\d (for digit): Regular Expressions
  • digits in names: Names
  • floating-point (see floating-point numbers)
  • functions dealing with: Perl Functions by Category
  • hexadecimal: Numeric Literals
  • • hex
  • hexadecimal, converting to: The s/// Operator (Substitution)
  • integers (see integers)
  • justifying by decimal point: Formats
  • large, underscore and: Numeric Literals
  • octal: Numeric Literals
  • • oct
  • for pages: Special Variables in Alphabetical Order
  • port, getting name for: getservbyname
  • ports, getting protocol names from: getservbyport
  • protocol: getprotobynumber
  • random: rand
  • • srand
  • strings, converting to: Scalar Values
  • truncating with int: int
  • truth values of: What Is Truth?
  • typing in Perl: Scalar Values
  • width of: Endianness and Number Width
• numeric context: Scalar and List Context
• numeric literals: Numeric Literals
• NV (internal double value): Internal Data Types

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