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# Index: N

N command (sed): 6.1.1. Append Next Line (sed & awk)
  10.5. Alphabetical Summary of sed Commands (Unix in a Nutshell)
  with P and D commands: 6.1.3. Multiline Print (sed & awk)
:n command (less): 3.2. Looking Inside Files with less (Learning Unix)
\n escape sequence: 6.1.1. Append Next Line (sed & awk)
-n grep option: 5.2.1. grep (Learning Unix)
\n metacharacter: 11.7. Extended Regular Expressions (Learning the vi Editor)
:n (next file) command (ex): 5.5.1. Invoking vi on Multiple Files (Learning the vi Editor)
-n option (sed): 2.3.2.2. Suppressing automatic display of input lines (sed & awk)
  5.2. Comment (sed & awk)
-N option (vile): 12.2. Important Command-Line Arguments (Learning the vi Editor)
-n option (vim): 11.2. Important Command-Line Arguments (Learning the vi Editor)
  11.4.1. Initialization for All vim Invocations (Learning the vi Editor)
n or N (next) commands, sed editor: 34.17. The Deliberate Scrivener (Unix Power Tools)
N (search again) command: 3.3.1. Repeating Searches (Learning the vi Editor)
-n string comparison operator: 5.1.4.1. String comparisons (Learning the Korn Shell)
  5.4. select (Learning the Korn Shell)
$Name: $ keyword (RCS): 19.3.2. Keywords (Unix in a Nutshell)
name in long formats: 3.1.8. Listing Files with ls (Learning Unix)
-name operator (findcommand): 9.6. Be an Expert on find Search Operators (Unix Power Tools)
-name operator(find command)
  -print operator, combining with: 9.12. Finding Many Things with One Command (Unix Power Tools)
-name option,effect on resources: 6.7. How -name Affects Resources (Unix Power Tools)
named buffers: 2.3.7. Copying Text (Learning the vi Editor)
  4.3. Making Use of Buffers (Learning the vi Editor)
  4.3.2. Yanking to Named Buffers (Learning the vi Editor)
  5.5.5. Edits Between Files (Learning the vi Editor)
  arbitrarily naming (nvi): 9.10. Interesting Features (Learning the vi Editor)
  executing contents of: 7.3.10. @-Functions (Learning the vi Editor)
named buffers, transferring text among with vi editor: 17.6. Using Buffers to Move or Copy Text (Unix Power Tools)
named pipes (FIFOs): 43.11. Named Pipes: FIFOs (Unix Power Tools)
named.conf file: 46.9. Domain Name Service (DNS) (Unix Power Tools)
-nameoperator (find command): 13.3. Finding Text That Doesn't Match (Unix Power Tools)
  using with -exec: 9.12. Finding Many Things with One Command (Unix Power Tools)
nameref command: 4.9. Built-in Commands (Bourne and Korn Shells) (Unix in a Nutshell)
namerefs: 4.4. Indirect Variable References (namerefs) (Learning the Korn Shell)
names
  of applications and resources: 6.7. How -name Affects Resources (Unix Power Tools)
  computers on network: 2.5. How Unix Systems Remember Their Names (Unix Power Tools)
  directories, printing: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  Domain Name Service (DNS): 46.9. Domain Name Service (DNS) (Unix Power Tools)
  filenames, special: 11.2.1.4. Special filenames (sed & awk)
    11.2.3.7. Additional special files (sed & awk)
  files (see filenames)
  functions and macros, listing: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  paths (see pathnames)
  of programs, in error messages: 35.28. Finding a Program Name and Giving Your Program Multiple Names (Unix Power Tools)
  script files: 2.2. Command-Line Syntax (sed & awk)
  SMB peers (NETBIOS): 47.2. Installing and Configuring Samba (Unix Power Tools)
  usernames: 49.2. When Does a User Become a User (Unix Power Tools)
nameservers (NS): 46.3. Status and Troubleshooting (Unix Power Tools)
namesort script: 22.8. Sorting a List of People by Last Name (Unix Power Tools)
namespaces: 5.3.3. Two-level Namespaces (Mac OS X for Unix Geeks)
namespaces in Python: 42.3.4. Modules and Packages (Unix Power Tools)
naming
  commands: 35.27. Picking a Name for a New Command (Unix Power Tools)
    35.27. Picking a Name for a New Command (Unix Power Tools)
  environment variables: 35.3. What Environment Variables Are Good For (Unix Power Tools)
  files: 7.6. Naming Files (Unix Power Tools)
  shell scripts: 35.27. Picking a Name for a New Command (Unix Power Tools)
naming files and directories: 4.1. File and Directory Names (Learning Unix)
  wildcards for: 4.2. File and Directory Wildcards (Learning Unix)
NAT (see Network Address Translation)
natd daemon: 46.11. Gateways and NAT (Unix Power Tools)
native2ascii command: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
_ _NATURAL_ALIGNMENT_ _ macro: 4.2.2.1. Macros (Mac OS X for Unix Geeks)
navigating Unix filesystem: 31.1. Getting Around the Filesystem (Unix Power Tools)
  automatic directory setup: 31.13. Automatic Setup When You Enter/Exit a Directory (Unix Power Tools)
  cd, speeding up with aliases: 31.9. Quick cds with Aliases (Unix Power Tools)
  changing directories: 31.5. Saving Time When You Change Directories: cdpath (Unix Power Tools)
  changing directories with c (shell function): 31.10. cd by Directory Initials (Unix Power Tools)
  current directory: 31.3. What Good Is a Current Directory? (Unix Power Tools)
    finding: 31.4. How Does Unix Find Your Current Directory? (Unix Power Tools)
  finding (anyoneÕs) home directory: 31.11. Finding (Anyone's) Home Directory, Quickly (Unix Power Tools)
  loop control, break and continue: 31.6. Loop Control: break and continue (Unix Power Tools)
  marking your place with shell variable: 31.12. Marking Your Place with a Shell Variable (Unix Power Tools)
  relative and absolute pathnames: 31.2. Using Relative and Absolute Pathnames (Unix Power Tools)
  shell pushd and popd commands: 31.7. The Shells' pushd and popd Commands (Unix Power Tools)
navigation icons for resources shared with SMB network: 47.4. SWAT and GUI SMB Browsers (Unix Power Tools)
nawk: 2.1. Awk, by Sed and Grep, out of Ed (sed & awk)
nawk programming language: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  11.2. Command-Line Syntax (Unix in a Nutshell)
  11.2. Command-Line Syntax (Unix in a Nutshell)
nawk utility: 20.10. Quick Reference: awk (Unix Power Tools)
  awk variables, support of: 20.10.3. awk System Variables (Unix Power Tools)
  examples: 36.18. Shell Scripts On-the-Fly from Standard Input (Unix Power Tools)
  version history: 20.11. Versions of awk (Unix Power Tools)
ncurses library: 5.2. The System Library: libSystem (Mac OS X for Unix Geeks)
  12.9.2. Syntax Highlighting (Learning the vi Editor)
ndown (network down) script: 24.22.3. Closing a Window from a Shell Script (Unix Power Tools)
ndown script: 28.16. Separating Commands with Semicolons (Unix Power Tools)
-ne arithmetic comparison operator: 5.1.4.4. Arithmetic conditionals (Learning the Korn Shell)
ne (inequality) operator: 41.5.1. Scalars (Unix Power Tools)
neatening text (see editing fmt command)
nedit text editor: 9.4. X11-based Applications and Libraries (Mac OS X for Unix Geeks)
negative numbers as variable values: 37.3. Stop Syntax Errors in Numeric Tests (Unix Power Tools)
nested command substitution: 36.24. Nested Command Substitution (Unix Power Tools)
nested conditional statements: 8.1. Conditional Statements (sed & awk)
nested loops, breaking or continuing: 31.6. Loop Control: break and continue (Unix Power Tools)
  35.23. Loop Control: break and continue (Unix Power Tools)
nesting
  ` ` (backquotes): 28.14. Command Substitution (Unix Power Tools)
Net News: 6.6. Usenet News (Learning Unix)
NETBIOS name: 47.2. Installing and Configuring Samba (Unix Power Tools)
NetInfo: 3.1. Understanding Directory Services (Mac OS X for Unix Geeks)
  3.3. Configuring Directory Services (Mac OS X for Unix Geeks)
  browsing/modifying: 3.4. NetInfo (Mac OS X for Unix Geeks)
    3.6. NetInfo Command Reference (Mac OS X for Unix Geeks)
  bug affecting default setting: 3.3. Configuring Directory Services (Mac OS X for Unix Geeks)
  flat files and: 3.11. Flat Files and Their NetInfo Counterparts (Mac OS X for Unix Geeks)
  restoring/backing up: 3.12. Restoring the NetInfo Database (Mac OS X for Unix Geeks)
  utilities for: 3.5. NetInfo Utilities (Mac OS X for Unix Geeks)
    list of: 3.5. NetInfo Utilities (Mac OS X for Unix Geeks)
Netinfo, Mac OS X user/group management with: 49.2. When Does a User Become a User (Unix Power Tools)
NetInfo Manager: 3.1. Understanding Directory Services (Mac OS X for Unix Geeks)
  enabling root user and: 1.5.4. Additional Shell Commands (Mac OS X for Unix Geeks)
Netinfo, storing MacOS X passwords: 1.7. Which Shell Am I Running? (Unix Power Tools)
netpbm package: 45.19. The Portable Bitmap Package (Unix Power Tools)
netscape -remote technique: 29.3. C-Shell Aliases with Command-Line Arguments (Unix Power Tools)
netscape program: 1.3. Types of Commands (Learning Unix)
Netscape web browsers: 1.3. Types of Commands (Learning Unix)
  6.3. Lynx, a Text-based Web Browser (Learning Unix)
netstat command: 46.3. Status and Troubleshooting (Unix Power Tools)
  48.6.3. Check Network Connections (Unix Power Tools)
Network Address Translation (NAT): 46.1.1. Internet Protocol (IP) (Unix Power Tools)
  46.11. Gateways and NAT (Unix Power Tools)
  for PPP connections: 46.13. Gatewaying from a Personal LAN over a Modem (Unix Power Tools)
  private addresses: 46.11. Gateways and NAT (Unix Power Tools)
network cards, kernel boot output for: 44.2. Reading Kernel Boot Output (Unix Power Tools)
network devices
  configuring with ifconfig: 44.8. Network Devices — ifconfig (Unix Power Tools)
network devices, configuring: 44.1. Quick Introduction to Hardware (Unix Power Tools)
Network File System (see NFS)
Network Information Service (NIS): 1.7. Which Shell Am I Running? (Unix Power Tools)
network interfaces for gateways: 46.11. Gateways and NAT (Unix Power Tools)
network time synchronization: 37.6. How Unix Keeps Time (Unix Power Tools)
networked computers: 9.8. Virtual Network Computers (Mac OS X for Unix Geeks)
networked filesystem: 3.1.3. The Directory Tree (Learning Unix)
networking language (SMB on Windows): 47.2. Installing and Configuring Samba (Unix Power Tools)
networking protocols: 3.3. Configuring Directory Services (Mac OS X for Unix Geeks)
networking utilities: 1.21. Unix Networking and Communications (Unix Power Tools)
networks: 46.4. Where, Oh Where Did That Packet Go? (Unix Power Tools)
  (see also connectivity)
  archiving files for: 39.1. Packing Up and Moving (Unix Power Tools)
  checking connections for security breaches: 48.6.3. Check Network Connections (Unix Power Tools)
  computers, names of: 2.5. How Unix Systems Remember Their Names (Unix Power Tools)
  configuration of network devices (ifconfig file): 46.3. Status and Troubleshooting (Unix Power Tools)
  diagnosing problems with ping and traceroute: 46.4. Where, Oh Where Did That Packet Go? (Unix Power Tools)
  printing over: 45.8. Printing Over a Network (Unix Power Tools)
    CUPS package: 45.18. The Common Unix Printing System (CUPS) (Unix Power Tools)
  starting and disabling for dialup connections: 28.16. Separating Commands with Semicolons (Unix Power Tools)
networks, copying files across: 6.4. Transferring Files (Learning Unix)
:new command (elvis): 10.5. Multiwindow Editing (Learning the vi Editor)
:new command (vim): 11.5. Multiwindow Editing (Learning the vi Editor)
"[new file]" message: 1.1.2. Problems Opening Files (Learning the vi Editor)
newer alias (printing newest filename): 8.15. newer: Print the Name of the Newest File (Unix Power Tools)
-newer operator(find command): 9.8. Exact File-Time Comparisons (Unix Power Tools)
newform command: B.2. Alphabetical Summary of Commands (Unix in a Nutshell)
  B.2. Alphabetical Summary of Commands (Unix in a Nutshell)
  (see also cut command; paste command)
newgrp command: 4.9. Built-in Commands (Bourne and Korn Shells) (Unix in a Nutshell)
  B.2. Alphabetical Summary of Commands (Unix in a Nutshell)
  49.6. Groups and Group Ownership (Unix Power Tools)
  50.2.2. Which Group is Which? (Unix Power Tools)
newline characters: 3.2. A Line-Up of Characters (sed & awk)
  3.2.7. Positional Metacharacters (sed & awk)
  5.3. Substitution (sed & awk)
  11.2.3.3. Line continuation (sed & awk)
  2.2.3. Movement Within a Line (Learning the vi Editor)
  8.6.2. Arbitrary Length Lines and Binary Data (Learning the vi Editor)
  . (dot) and: 3.2.2. A Wildcard (sed & awk)
  multiline pattern space and: 6.1. Multiline Pattern Space (sed & awk)
  ORS variable for: 7.7. System Variables (sed & awk)
    7.7.1. Working with Multiline Records (sed & awk)
  in replacement strings: 5.3.1. Replacement Metacharacters (sed & awk)
  RS variable for: 7.7. System Variables (sed & awk)
    11.2.1.6. Regular expression record separators (gawk and mawk) (sed & awk)
    11.3.2.1. Tawk language extensions (sed & awk)
newlines
  as argument separators: 27.12.1. Special Characters (Unix Power Tools)
  awk procedures, separating: 20.10.2.1. Patterns (Unix Power Tools)
  in Bourne shell quoting: 27.13.2. How Quoting Works (Unix Power Tools)
  different characters for: 1.19. When Is a File Not a File? (Unix Power Tools)
  DOS, converting to Unix: 40.1. /usr/bin and Other Software Directories (Unix Power Tools)
  Mac vs. Unix: 1.8. Anyone Can Program the Shell (Unix Power Tools)
  \n
    in bash shell prompt: 4.7. Multiline Shell Prompts (Unix Power Tools)
    in Bourne-type shells: 4.7. Multiline Shell Prompts (Unix Power Tools)
    in event translation tables: 6.4. X Event Translations (Unix Power Tools)
  quoted in sed, shell interpretation of: 34.24. sed Newlines, Quoting, and Backslashes in a Shell Script (Unix Power Tools)
  in sed replacement: 34.9. Newlines in a sed Replacement (Unix Power Tools)
  translating Mac carriage returns to: 21.11. Hacking on Characters with tr (Unix Power Tools)
  in vi @-functions: 18.4.4. Newlines in an @-Function (Unix Power Tools)
news
  Emacs facility for: 19.2. Emacs Features: A Laundry List (Unix Power Tools)
  removing headers with behead script: 21.5. Remove Mail/News Headers with behead (Unix Power Tools)
news command: B.2. Alphabetical Summary of Commands (Unix in a Nutshell)
news directory, accessing: B.2. Alphabetical Summary of Commands (Unix in a Nutshell)
newsgroup, awk: 0.. Other Sources of Information About sed and awk (sed & awk)
newsreader program: 6.6. Usenet News (Learning Unix)
NEXINIT environment variable (nvi): 9.4. Initialization (Learning the vi Editor)
.nexrc file (nvi): 9.4. Initialization (Learning the vi Editor)
next command (awk): 11.10. Alphabetical Summary of Functions and Commands (Unix in a Nutshell)
  20.10.7. Alphabetical Summary of Commands (Unix Power Tools)
next command (ex): 9.2. Alphabetical Summary of ex Commands (Unix in a Nutshell)
:Next command (nvi): 9.5. Multiwindow Editing (Learning the vi Editor)
next command (sed) (see n command (sed); N command (sed))
next (n or N) commands, sed editor: 34.16. Making Edits Across Line Boundaries (Unix Power Tools)
  34.17. The Deliberate Scrivener (Unix Power Tools)
next operator (Perl): 41.6. Perl Boot Camp, Part 3: Branching and Looping (Unix Power Tools)
NeXT property lists: 2.2.2.2. The property list (Mac OS X for Unix Geeks)
next statement (awk): 8.3. Other Statements That Affect Flow Control (sed & awk)
  10.1. The getline Function (sed & awk)
  (see also getline function)
:next-tag command (vile): 12.8.2. Tag Stacks (Learning the vi Editor)
:next-window command (vile): 12.5. Multiwindow Editing (Learning the vi Editor)
nextdir command: 9.23.1. Using the Stored Lists (Unix Power Tools)
nextfile command (gawk): 11.10. Alphabetical Summary of Functions and Commands (Unix in a Nutshell)
nextfile statement: 11.2.1.5. The nextfile statement (sed & awk)
Nextish theme (OroborOSX): 9.5.1. An Aqua-like X11: OroborOSX (Mac OS X for Unix Geeks)
nf command: 3.2. Looking Inside Files with less (Learning Unix)
NF variable: 7.7. System Variables (sed & awk)
  7.7. System Variables (sed & awk)
  10.1.2. Assigning the Input to a Variable (sed & awk)
NFS exports: 3.10. Exporting Directories with NFS (Mac OS X for Unix Geeks)
NFS (Network File System): 1.21. Unix Networking and Communications (Unix Power Tools)
  directories, backups to remote tape drive: 38.7. Using tar to a Remote Tape Drive (Unix Power Tools)
  directories remotely mounted by, hung terminals and: 5.6. Checklist: Terminal Hangs When I Log In (Unix Power Tools)
  find command, preventing from searching: 9.28. Keeping find from Searching Networked Filesystem (Unix Power Tools)
  installing packages residing on server: 40.5.1. Choosing the Access Method (Unix Power Tools)
  mounting: 44.9. Mounting Network Filesystems — NFS, SMBFS (Unix Power Tools)
NFS (Network File Systems)
  file recovery, vi -r command vs.: 17.19. vi File Recovery Versus Networked Filesystems (Unix Power Tools)
n\\>&m operator
  echo commands ending with: 35.17. Trapping Exits Caused by Interrupts (Unix Power Tools)
  examples: 36.24. Nested Command Substitution (Unix Power Tools)
  redirecting standard output and standard error: 36.16. n>&m: Swap Standard Output and Standard Error (Unix Power Tools)
nice command: 1.8.2.1. nice (Learning the Korn Shell)
  1.6.10. Miscellaneous Tools (Mac OS X for Unix Geeks)
  2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  5.8. Built-in C Shell Commands (Unix in a Nutshell)
  26.5. Know When to Be "nice" to Other Users...and When Not To (Unix Power Tools)
  background processes and: 23.4. Some Gotchas with Job Control (Unix Power Tools)
  BSD Unix
    C shell: 26.5.1. BSD C Shell nice (Unix Power Tools)
    standalone: 26.5.2. BSD Standalone nice (Unix Power Tools)
  foreground jobs and: 26.6. A nice Gotcha (Unix Power Tools)
  renice command: 23.7. System Overloaded? Try Stopping Some Jobs (Unix Power Tools)
    26.5. Know When to Be "nice" to Other Users...and When Not To (Unix Power Tools)
    26.7. Changing a Running Job's Niceness (Unix Power Tools)
  System V, standalone: 26.5.4. System V Standalone nice (Unix Power Tools)
nice numbers: 26.5. Know When to Be "nice" to Other Users...and When Not To (Unix Power Tools)
  26.7. Changing a Running Job's Niceness (Unix Power Tools)
  BSD C shell nice: 26.5.1. BSD C Shell nice (Unix Power Tools)
  BSD standalone nice: 26.5.2. BSD Standalone nice (Unix Power Tools)
  System V C shell nice: 26.5.3. System V C Shell nice (Unix Power Tools)
  System V standalone nice: 26.5.4. System V Standalone nice (Unix Power Tools)
niceness: 26.5. Know When to Be "nice" to Other Users...and When Not To (Unix Power Tools)
  System V, C shell nice: 26.5.3. System V C Shell nice (Unix Power Tools)
nicl utility: 3.6. NetInfo Command Reference (Mac OS X for Unix Geeks)
  groups, creating with: 3.7.2. Creating a Group with nicl (Mac OS X for Unix Geeks)
  users, creating with: 3.8.2. Creating a User with nicl (Mac OS X for Unix Geeks)
nidump utility: 3.5. NetInfo Utilities (Mac OS X for Unix Geeks)
  3.6. NetInfo Command Reference (Mac OS X for Unix Geeks)
  3.8.5. Listing Users with nidump (Mac OS X for Unix Geeks)
  groups, listing with: 3.7.4. Listing Groups with nidump (Mac OS X for Unix Geeks)
niload utility: 3.5. NetInfo Utilities (Mac OS X for Unix Geeks)
  3.6. NetInfo Command Reference (Mac OS X for Unix Geeks)
  caution with -P option for: 3.6. NetInfo Command Reference (Mac OS X for Unix Geeks)
  groups, creating with: 3.7.1. Creating a Group with niload (Mac OS X for Unix Geeks)
  users, creating with: 3.8.1. Creating a User with niload (Mac OS X for Unix Geeks)
nireport utility: 3.5. NetInfo Utilities (Mac OS X for Unix Geeks)
  3.6. NetInfo Command Reference (Mac OS X for Unix Geeks)
  users, listing with: 3.8. Managing Users and Passwords (Mac OS X for Unix Geeks)
NIS (Network Information Service): 1.7. Which Shell Am I Running? (Unix Power Tools)
niutil utility: 3.5. NetInfo Utilities (Mac OS X for Unix Geeks)
nl command: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
nl program (line-numbering): 12.13. Numbering Lines (Unix Power Tools)
nm command: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
nmbd daemon: 47.2. Installing and Configuring Samba (Unix Power Tools)
n/N commands: 2.4.4. Moving Around in the History File (Learning the Korn Shell)
-no-cpp-precomp switch: 4.2.4. Preprocessing (Mac OS X for Unix Geeks)
  5.1.1. Precompiled Header Files (Mac OS X for Unix Geeks)
:no (:normal) command (elvis): 10.10.1. Display Modes (Learning the vi Editor)
  10.10.1. Display Modes (Learning the vi Editor)
--nroff option for command help: 1.5.2. Built-in Help (Learning the Korn Shell)
NO SCROLL key: 1.4. The Unresponsive Terminal (Learning Unix)
"No Toolkit" vile interface: 12.6. GUI Interfaces (Learning the vi Editor)
"No write since last change" message: 1.1.2. Problems Opening Files (Learning the vi Editor)
  5.3. Saving and Exiting Files (Learning the vi Editor)
nobeep shell variable: 5.3.3. Predefined Shell Variables (Unix in a Nutshell)
nobody (generic user for HTTP web pages): 48.6.1. Check Processes (Unix Power Tools)
noclobber option: 3.3. Options (Learning the Korn Shell)
  7.1. I/O Redirectors (Learning the Korn Shell)
  customizations and: 10.2.3. Types of Global Customization (Learning the Korn Shell)
noclobber shell variable: 5.3.3. Predefined Shell Variables (Unix in a Nutshell)
  14.8. Safer File Deletion in Some Directories (Unix Power Tools)
  43.6. Safe I/O Redirection with noclobber (Unix Power Tools)
noclobber variable: 5.1.1.2. The > operator (Learning Unix)
nocp option (vim): 11.10.2.1. Smart indenting (Learning the vi Editor)
noexec option: 9.1.1. Set Options (Learning the Korn Shell)
  9.1.1. Set Options (Learning the Korn Shell)
noglob option: 3.3. Options (Learning the Korn Shell)
  33.2. Filename Wildcards in a Nutshell (Unix Power Tools)
noglob shell variable: 5.3.3. Predefined Shell Variables (Unix in a Nutshell)
nohup command: 8.4.3. Ignoring Signals (Learning the Korn Shell)
  1.6.10. Miscellaneous Tools (Mac OS X for Unix Geeks)
  2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  4.9. Built-in Commands (Bourne and Korn Shells) (Unix in a Nutshell)
  5.8. Built-in C Shell Commands (Unix in a Nutshell)
  23.10. nohup (Unix Power Tools)
  background processes, avoiding termination of: 23.4. Some Gotchas with Job Control (Unix Power Tools)
  disown vs.: 23.11. Disowning Processes (Unix Power Tools)
nohup.out file: 23.10. nohup (Unix Power Tools)
noignorecase option: 7.1.4. Some Useful Options (Learning the vi Editor)
nolinewrap option (vile): 12.8.6. Left-Right Scrolling (Learning the vi Editor)
nom script: 33.8. nom: List Files That Don't Match a Wildcard (Unix Power Tools)
  trap command in: 35.17. Trapping Exits Caused by Interrupts (Unix Power Tools)
nomagic option: 7.1.4. Some Useful Options (Learning the vi Editor)
non-ASCII characters in filenames, deleting files with: 14.14. Using unlink to Remove a File with a Strange Name (Unix Power Tools)
"Non-ascii file" message: 1.1.2. Problems Opening Files (Learning the vi Editor)
non-English characters: 3.2.4.3. POSIX character class additions (sed & awk)
non-greedy matching: 4.5.4.1. Greedy versus non-greedy matching (Learning the Korn Shell)
non-rewinding tape devices: 38.5.2. Backing Up to Tape (Unix Power Tools)
nongraphical login: 1.1.2. Logging in Nongraphically (Learning Unix)
noninteractive shells: 3.4.2. Interactive Shells (Unix Power Tools)
nonlogin files, bash: 3.3. Shell Setup Files — Which, Where, and Why (Unix Power Tools)
nonlogin shells
  Bourne shell, .profile file and: 3.3. Shell Setup Files — Which, Where, and Why (Unix Power Tools)
  startup files: 3.4.1. Login Shells (Unix Power Tools)
  xterm, configuring for: 5.10. Login xterms and rxvts (Unix Power Tools)
nonomatch shell variable: 5.3.3. Predefined Shell Variables (Unix in a Nutshell)
nonprintable characters
  displaying with od command: 12.4. Show Nonprinting Characters with cat -v or od -c (Unix Power Tools)
nonprintable characters in filenames: 8.12. Showing Nonprintable Characters in Filenames (Unix Power Tools)
nonprintable or control characters: 1.5. Programs Are Designed to Work Together (Unix Power Tools)
nonprinting characters
  erasing with sed to eliminate extra blank lines: 12.7. Squash Extra Blank Lines (Unix Power Tools)
  filenames with, file deletion and: 14.16. Problems Deleting Directories (Unix Power Tools)
  ls command, System V Unix: 8.12. Showing Nonprintable Characters in Filenames (Unix Power Tools)
  octal values of, printing with ls -b: 8.12. Showing Nonprintable Characters in Filenames (Unix Power Tools)
  showing with cat -v: 12.4. Show Nonprinting Characters with cat -v or od -c (Unix Power Tools)
nonprinting escape sequences in a prompt: 4.10. Highlighting and Color in Shell Prompts (Unix Power Tools)
nonu (nonumber) option: 5.2.2. Defining a Range of Lines (Learning the vi Editor)
noremap command : (upt) 18.12. Don't Lose Important Functions with vi Maps: Use noremap (Learning the vi Editor)
normal display mode (elvis): 10.10.1. Display Modes (Learning the vi Editor)
:normal (:no) command (elvis): 10.10.1. Display Modes (Learning the vi Editor)
  10.10.1. Display Modes (Learning the vi Editor)
NOT (!) operator: 7.8. Relational and Boolean Operators (sed & awk)
not a tty message: 24.6. The Controlling Terminal (Unix Power Tools)
"Not a typewriter" message: 1.1.2. Problems Opening Files (Learning the vi Editor)
not command: 3.1.8. Listing Files with ls (Learning Unix)
not equal to (!=) operator: 41.5.1. Scalars (Unix Power Tools)
not operator: 41.5.1. Scalars (Unix Power Tools)
NOT operator (!): 20.10.2.1. Patterns (Unix Power Tools)
NOT operator (!), using with find command: 9.8. Exact File-Time Comparisons (Unix Power Tools)
notagstack option (elvis): 10.8.2. Tag Stacks (Learning the vi Editor)
notification, mail: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
notification of changed job state: 23.8. Notification When Jobs Change State (Unix Power Tools)
notification of job-state changes: 23.1. Job Control in a Nutshell (Unix Power Tools)
notify command: 5.8. Built-in C Shell Commands (Unix in a Nutshell)
  B.2. Alphabetical Summary of Commands (Unix in a Nutshell)
notify shell variable: 5.3.3. Predefined Shell Variables (Unix in a Nutshell)
-nouser or-nogroup operators (find command): 9.16. Searching by Owner and Group (Unix Power Tools)
nowrap option (elvis): 10.8.5. Left-Right Scrolling (Learning the vi Editor)
nowrap option (vim): 11.8.6. Left-Right Scrolling (Learning the vi Editor)
nowrapscan option: 3.3.1. Repeating Searches (Learning the vi Editor)
  7.1.4. Some Useful Options (Learning the vi Editor)
NR variable: 7.7. System Variables (sed & awk)
  7.7. System Variables (sed & awk)
  8.4. Arrays (sed & awk)
  10.1.2. Assigning the Input to a Variable (sed & awk)
nroff formatting language
  checking mismatched delimiters: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
    2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  removing all requests/macros: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
nroff formatting package: 1. The vi Text Editor (Learning the vi Editor)
nroff program: 12. nroff and troff (Unix in a Nutshell)
  45.12. Typesetting Manpages: nroff (Unix Power Tools)
  -man macros: 3.21. Make Your Own Manpages Without Learning troff (Unix Power Tools)
  command-line invocation: 12.2. Command-Line Invocation (Unix in a Nutshell)
  commands in: 2.4. Searching Online Manual Pages (Unix Power Tools)
  conceptual overview: 12.3. Conceptual Overview (Unix in a Nutshell)
  eliminating .so requests: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  eqn processor: 17.2. eqn (Unix in a Nutshell)
  escape sequences: 12.7. Escape Sequences (Unix in a Nutshell)
  formatting text with sed: 21.3. Alternatives to fmt (Unix Power Tools)
  pic processor: 17.3. pic (Unix in a Nutshell)
  predefined registers: 12.8. Predefined Registers (Unix in a Nutshell)
  preprocessors of: 17. troff Preprocessors (Unix in a Nutshell)
  refer processor: 17.4. refer (Unix in a Nutshell)
  requests (by group): 12.5. Group Summary of Requests (Unix in a Nutshell)
  requests (by name): 12.6. Alphabetical Summary of Requests (Unix in a Nutshell)
  requests, list of: 12.4. Default Operation of Requests (Unix in a Nutshell)
  special characters: 12.9. Special Characters (Unix in a Nutshell)
  tbl processor: 17.1. tbl (Unix in a Nutshell)
nroff, stripping non-printable characters: 5.6.1. Stripping Out Non-Printable Characters from nroff Files (sed & awk)
NT domains: 47.2. Installing and Configuring Samba (Unix Power Tools)
-nt file attribute operator: 5.1.4.3. File attribute checking (Learning the Korn Shell)
  7.3.4. eval (Learning the Korn Shell)
ntalk program: 6.7.1. talk (Learning Unix)
nu option: 2.2.3. Movement Within a Line (Learning the vi Editor)
  3.4. Movement by Line Number (Learning the vi Editor)
NUL characters: 12.4. Show Nonprinting Characters with cat -v or od -c (Unix Power Tools)
  43.12. What Can You Do with an Empty File? (Unix Power Tools)
  delimiters, using as: 9.9. Running Commands on What You Find (Unix Power Tools)
null command: 35.13. Test Exit Status with the if Statement (Unix Power Tools)
null commands: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
null or unset variables, errors caused by: 37.3. Stop Syntax Errors in Numeric Tests (Unix Power Tools)
null string: 4.2.1. Positional Parameters (Learning the Korn Shell)
number command (ex): 9.2. Alphabetical Summary of ex Commands (Unix in a Nutshell)
number registers
  in man macros: 16.3. Internal Names (Unix in a Nutshell)
  in me macros: 15.3. Predefined Number Registers (Unix in a Nutshell)
  in mm macros: 13.3. Number Registers Used in mm (Unix in a Nutshell)
  in ms macros: 14.2. Number Registers for Page Layout (Unix in a Nutshell)
    14.4. Reserved Number Register Names (Unix in a Nutshell)
  in nroff/troff: 12.5.11. Number Registers (Unix in a Nutshell)
numbered deletions/yanks buffers: 2.3.6. Moving Text (Learning the vi Editor)
  4.3. Making Use of Buffers (Learning the vi Editor)
numbered replacement strings: 5.3.1. Replacement Metacharacters (sed & awk)
numbering lines: 12.13. Numbering Lines (Unix Power Tools)
numbering lines in files: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
numbers
  arithmetic functions: 9.1. Arithmetic Functions (sed & awk)
    11.1.10. Functions (sed & awk)
  ASCII class for: 5.14. Defining What Makes Up a Word for Selection Purposes (Unix Power Tools)
  comparing (relationship operators): 7.8. Relational and Boolean Operators (sed & awk)
  converting to strings: 7.7. System Variables (sed & awk)
  factorials: 8.2.4. Deriving Factorials (sed & awk)
  hexadecimal: 7.6. Expressions (sed & awk)
    11.3.2.1. Tawk language extensions (sed & awk)
  limitations on: 10.8. Limitations (sed & awk)
  octal: 7.6. Expressions (sed & awk)
  output precision: 7.9. Formatted Printing (sed & awk)
  prime factors: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
  random: 9.1.3. Random Number Generation (sed & awk)
  truncating: 9.1.2. Integer Function (sed & awk)
numbers, converting units of: 2.1. Alphabetical Summary of Commands (Unix in a Nutshell)
numbers for lines (see line numbers)
numeric arguments for commands: 2.2.2. Numeric Arguments (Learning the vi Editor)
  2.4.1. Numeric Arguments for Insert Commands (Learning the vi Editor)
numeric exit status: 24.3. Managing Processes: Overall Concepts (Unix Power Tools)
numeric flags: 5.3. Substitution (sed & awk)
  5.3. Substitution (sed & awk)
numeric mode (chmod): 50.5. Using chmod to Change File Permission (Unix Power Tools)
numeric operators: 41.5.1. Scalars (Unix Power Tools)
numeric sorting, alphabetic vs.: 22.5. Alphabetic and Numeric Sorting (Unix Power Tools)
numeric tests, syntax errors in: 37.3. Stop Syntax Errors in Numeric Tests (Unix Power Tools)
numeric variables: 6.1.3. getopts (Learning the Korn Shell)
numerical order, -n option for: 1.1. What Is a Shell? (Learning the Korn Shell)
nup (network up) script: 24.22.3. Closing a Window from a Shell Script (Unix Power Tools)
nup script: 28.16. Separating Commands with Semicolons (Unix Power Tools)
nvi (vi clone): 9. nvi—New vi (Learning the vi Editor)
  documentation and online help: 9.3. Online Help and Other Documentation (Learning the vi Editor)
  extended regular expressions: 8.4. Extended Regular Expressions (Learning the vi Editor)
    9.7. Extended Regular Expressions (Learning the vi Editor)
  extension languages: 8.1. And These Are My Brothers, Darrell, Darrell, and Darrell (Learning the vi Editor)
  feature summary: 8.8. Editor Comparison Summary (Learning the vi Editor)
  important command-line arguments: 9.2. Important Command-Line Arguments (Learning the vi Editor)
  improvements over vi: 9.8. Improvements for Editing (Learning the vi Editor)
  infinite undo facility: 8.6.4. Incremental Searching (Learning the vi Editor)
  initialization of: 9.4. Initialization (Learning the vi Editor)
  interesting features: 9.10. Interesting Features (Learning the vi Editor)
  line length: 8.6.2. Arbitrary Length Lines and Binary Data (Learning the vi Editor)
  mode indicators: 8.6.7. Mode Indicators (Learning the vi Editor)
  multiwindow editing: 9.5. Multiwindow Editing (Learning the vi Editor)
  obtaining source code: 9.11. Sources and Supported Operating Systems (Learning the vi Editor)
  set command options (list): C.2. nvi 1.79 Options (Learning the vi Editor)
  sideways scrolling: 8.6.5. Left-Right Scrolling (Learning the vi Editor)
  tag stacks: 9.8.2. Tag Stacks (Learning the vi Editor)
  word abbreviations: 7.3.1. Word Abbreviation (Learning the vi Editor)
nvram command: 8.3. System Configuration (Mac OS X for Unix Geeks)
  8.3.2. nvram (Mac OS X for Unix Geeks)

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