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Index: N

n command (debugger) : 8.1.1. Debugger Commands

-n switch, perl : 6.1.2. Switches

named pipes : 6.2.2.4. Named pipes

named unary operators

2.3.7.3. Filename globbing operator
2.5.10. Named Unary and File Test Operators

names

arrays : 2.3.1. Variables

capitalization conventions : 2.3.1. Variables

commands : 1.2.2. Verbs

current working directory : 7.2.7. Cwd - Get Pathname of Current Working Directory

file : 2.3.2.7. Other literal tokens

for files : (see filenames)

format : (see format, names)

functions : 1.2.2. Verbs

getting from network addresses

3.2.47. gethostbyaddr
3.2.51. getnetbyaddr

getting from port number : 3.2.64. getservbyname

global variables : 7.2.76. vars - Predeclare Global Variable Names

hashes : 2.3.1. Variables

labels and filehandles : 2.3.1. Variables

modules : 5.2. Modules

modules/packages : 8.4. Programming with Style

program : (see $ variables, $0 variable)

protocol : 3.2.59. getprotobynumber

getting from port number : 3.2.65. getservbyport

signals : 6.2.1. Signals

sockets : 3.2.7. bind

subroutine : 2.7. Subroutines

subroutines : 2.3.1. Variables

translating to network addresses

3.2.48. gethostbyname
3.2.52. getnetbyname

typeglobs

2.3.6. Typeglobs and Filehandles
2.7.1. Passing Symbol Table Entries (Typeglobs)

usernames, passwd file entry from : 3.2.62. getpwnam

variable

7.2.61. Symbol - Generate Anonymous Globs; Qualify Variable Names
8.4. Programming with Style

variables

1.2.1. Nouns
2.3.1. Variables

namespace : (see packages)

namespaces, creating safe : 7.2.51. Safe - Create Safe Namespaces for Evaluating Perl Code

natural languages : 1.2. Natural and Artificial Languages

NDBM_File module : 7.2.1. AnyDBM_File - Provide Framework for Multiple DBMs

NDBM_File mofule : 7.2.45. NDBM_File - Tied Access to NDBM Files

ne operator : 8.2.1. Universal Blunders

negation

arithmetic (-) operator : 2.5.5. Ideographic Unary Operators
bitwise (~) operator : 2.5.5. Ideographic Unary Operators
logical (!) operator : 2.5.5. Ideographic Unary Operators
of character class : 1.7.1. Quantifiers

negative lookahead asserion : 2.4.1.4. Regular expression extensions

nested

data structures, printed : 8.1.1. Debugger Commands

destruction : 5.3.7. Destructors

lists

4.6. A Brief Tutorial: Manipulating Lists of Lists
4.7. Data Structure Code Examples

packages : 5.1. Packages

Net::Ping module : 7.2.46. Net::Ping - Check Whether a Host Is Online

network addresses, translating to names

3.2.47. gethostbyaddr
3.2.51. getnetbyaddr

networks file : (see /etc/networks file)

new method : 3.2.98. new

new() : 7.2.33. FileHandle - Supply Object Methods for Filehandles

new_from_fd() : 7.2.33. FileHandle - Supply Object Methods for Filehandles

newlines

boundary assertions and : 2.4.1.2. The rules of regular expression matching
removing : 1.4. Filehandles
in string literals : 2.3.2.2. String literals

newsgroups : Usenet Newsgroups

next operator

1.6.2.4. Breaking out: next and last
2.6.4.4. Loop control
3.2.99. next
next if construct : 8.3.1. Time Efficiency

NEXTKEY method : 5.4.3. Tying Hashes

NFA (nondeterministic finite-state automaton) : 2.4.1.2. The rules of regular expression matching

$nlink file statistic : 3.2.159. stat

no declaration

2.6.9. Pragmas
3.2.100. no

nomethod operator : 7.2.48.4. No method

nondeterministic finite-state automaton (NFA) : 2.4.1.2. The rules of regular expression matching

not (!) operator : 2.5.5. Ideographic Unary Operators

not equal to (!=) operator : 2.5.12. Equality Operators

nouns : 1.2.1. Nouns

$NR : (see $ variables, $. variable)

null

filehandle

angle operator and : 2.3.7.2. Line input (angle) operator

list : 2.3.4. List Values and Arrays

scalars : 2.3.3.2. Boolean context

numbers

for commands, debugger and : 8.1.2. Using the Debugger

comparing in awk : 6.4.2.2. a2p

comparison operators for : 1.5.6. Comparison Operators

complex : 7.2.44. Math::Complex - Complex Numbers Package

\d (for digit) : 1.7. Regular Expressions

digits in names : 2.3.1. Variables

floating-point : 7.2.42. Math::BigFloat - Arbitrary-Length, Floating-Point Math Package

hexadecimal

(see hexadecimal numbers)
2.4.1.2. The rules of regular expression matching
3.2.73. hex

integers

7.2.38. integer - Do Arithmetic in Integer Instead of Double
7.2.43. Math::BigInt - Arbitrary-Length Integer Math Package

justifying by decimal point : 2.8. Formats

large, underscore and : 2.3.2.1. Numeric literals

line (__LINE__ token) : 2.3.2.7. Other literal tokens

octal

(see octal characters)
2.4.1.2. The rules of regular expression matching
3.2.101. oct

for pages : 2.9.2. Per-Filehandle Special Variables

port, getting name for/from

3.2.64. getservbyname
3.2.65. getservbyport

protocol : 3.2.59. getprotobynumber

random

3.2.115. rand
3.2.158. srand

truncating with int : 3.2.76. int

numeric literals : 2.3.2.1. Numeric literals

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