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: I

i-number (inodes): 14.2. How Unix Keeps Track of Files: Inodes

i-numbers, deleting files by: 14.15. Removing a Strange File by its i-number

ICA client, installing: 47.9.1. Citrix Metaframe

ICMP (Internet Control Message Protocol): 46.1. TCP/IP — IP Addresses and Ports

46.1.2. Layer 4 Protocols: TCP, UDP, and ICMP

diagnostic and traffic control messages: 46.1.2. Layer 4 Protocols: TCP, UDP, and ICMP

icons

navigation, for resources shared with SMB network: 47.4. SWAT and GUI SMB Browsers

text, setting for xterms: 5.15. Setting the Titlebar and Icon Text

IDE (Integrated Development Environment), Emacs as: 19.2. Emacs Features: A Laundry List

identifiers: 24.3. Managing Processes: Overall Concepts

(see also entries under identifier names)

group ID (GID): 24.3. Managing Processes: Overall Concepts

process ID (PID): 24.3. Managing Processes: Overall Concepts

user IDs (UIDs): 24.3. Managing Processes: Overall Concepts

identity, Python objects: 42.3.3. Everything's an Object

if (! $?prompt) exit test: 3.9. Gotchas in set prompt Test

if command (awk): 20.10.7. Alphabetical Summary of Commands

if statements

: used as do-nothing place filler: 36.6. The Unappreciated Bourne Shell ":" Operator

debugging: 37.1.4. Missing or Extra esac, ;;, fi, etc.

syntax for Bourne shell: 35.13. Test Exit Status with the if Statement

test command, using with: 35.26. test: Testing Files and Strings

testing exit status with: 35.13. Test Exit Status with the if Statement

in xmessage command line: 36.26. Outputting Text to an X Window

if-then-else loops

cgrep script, using in: 34.18. Searching for Patterns Split Across Lines

csh aliases, use in: 29.9. How to Put if-then-else in a C-Shell Alias

Perl scripts, using in: 41.6. Perl Boot Camp, Part 3: Branching and Looping

ifconfig tool: 44.1. Quick Introduction to Hardware

44.8. Network Devices — ifconfig

46.3. Status and Troubleshooting

if/else block, testing multiple conditionals in: 35.13. Test Exit Status with the if Statement

IFS (internal field separator) shell variable: 36.23.3. Using set and IFS

ignoreeof variable: 4.19. Stop Accidental Bourne-Shell Logouts

ignoring filenames in ls command listing: 8.7. Some GNU ls Features

@INC array (Perl): 41.2. Checking your Perl Installation

module paths in: 41.4. Perl Boot Camp, Part 1: Typical Script Anatomy

incremental backups: 38.9. On-Demand Incremental Backups of a Project

incremental searches in Emacs: 19.8. Rational Searches

indentation

in Bourne shell scripts with <<- operator: 27.16. Here Documents

Perl script for text: 21.7. offset: Indent Text

in Python scripts: 42.3.1. Indentation

index command (awk): 20.10.7. Alphabetical Summary of Commands

indexes

Bourne shell arrays: 9.23.1. Using the Stored Lists

C shell arrays: 9.23.1. Using the Stored Lists

hashes: 41.5.3. Hashes

industrial strength backups: 38.14. Industrial Strength Backups

inequality

!= operator: 41.5.1. Scalars

ne operator: 41.5.1. Scalars

inetd daemon: 46.5. The Director of Operations: inetd

disabling for security reasons: 48.10. Disabling inetd

Expect scripts with: 28.18.4. Other Problems

running Samba daemons: 47.2. Installing and Configuring Samba

infinite loops

tail -f command, creating with: 12.10. How to Look at Files as They Grow

info command: 2.9. The info Command

inheritance

process information: 24.3. Managing Processes: Overall Concepts

variables: 35.9. Shell Variables

_ _init_ _( ) method (Python classes): 42.3.3. Everything's an Object

init program: 23.1. Job Control in a Nutshell

23.2.1. How Job Control Works

24.2. fork and exec

collecting child processes after parent exits: 24.19. Why You Can't Kill a Zombie

initialization files (Emacs): 19.3. Customizations and How to Avoid Them

initializing new cvsroot: 39.7. CVS Basics

inodes: 10.2. What's Really in a Directory?

14.2. How Unix Keeps Track of Files: Inodes

-ctime (change time) operator, using with find: 9.5. Searching for Old Files

file permissions in: 50.2.1. User, Group, and World

i-numbers for parent directory entries: 10.4.2. Links to a Directory

information in: 14.2. How Unix Keeps Track of Files: Inodes

ls -c command for: 8.3. Finding Oldest or Newest Files with ls -t and ls -u

ls -i command, listing number for each directory entry: 10.4.1. Differences Between Hard and Symbolic Links

tar utility and: 38.2. tar in a Nutshell

input (see input/output standard input)

input events: 6.4. X Event Translations

input/output (I/O): 1.5. Programs Are Designed to Work Together

(see also standard error; standard input; stardard output)

checking statistics for security problems: 48.6.4. Other Checks

find command -print0 option: 9.9. Running Commands on What You Find

output from at command, quieting: 25.6. Making Your at Jobs Quiet

output from background jobs, stopping: 23.9. Stop Background Output with stty tostop

output from command, sending to nohup.out file: 23.10. nohup

piping shell loop output to pager: 2.4. Searching Online Manual Pages

Python: 42.3.5. I/O and Formatting

redirecting (see redirecting input and output)

redirecting for programs: 36.15. Overview: Open Files and File Descriptors

stopped terminal output, debugging: 5.6.1. Output Stopped?

INPUTRC environment variable: 35.5. Predefined Environment Variables

.inputrc file: 3.3. Shell Setup Files — Which, Where, and Why

insert command (ex): 20.4. Useful ex Commands

insert mode for pasting text: 5.13. Simple Copy and Paste in xterm

insertion mode (Emacs): 19.5. Putting Emacs in Overwrite Mode

installing, Python: 42.2. Installation and Distutils

installing Perl: 41.3. Compiling Perl from Scratch

installing software: 40.1. /usr/bin and Other Software Directories

challenges of: 40.2. The Challenges of Software Installation on Unix

curl application, using: 40.8. The curl Application and One-Step GNU-Darwin Auto-Installer for OS X

Debian apt-get tool, using: 40.6. Installing Software with Debian's Apt-Get

configuring sources.list file: 40.6.1. Configuring the sources.list File

Debian dselect tool, using: 40.5. Using Debian's dselect

access method, choosing: 40.5.1. Choosing the Access Method

choosing packages for installation or removal: 40.5.3. Choosing Packages for Installation or Removal

configuring packages: 40.5.6. Configuring Packages

exiting: 40.5.8. Exiting dselect

exiting select function: 40.5.4. Exiting the Select Function

installing packages: 40.5.5. Installing Packages

removing packages: 40.5.7. Removing Packages

updating information on available packages: 40.5.2. Updating Information on Available Packages

FreeBSD packages, using: 40.10. Installing with FreeBSD Packages

FreeBSD Ports, using: 40.9. Installation with FreeBSD Ports

GNU wget utility, using: 40.7. Interruptable gets with wget

make utility, problems with differing versions: 40.3. Which make?

RPM, using: 40.11. Finding and Installing RPM Packaged Software

simplifying the make process: 40.4. Simplifying the make Process

/usr/bin and other directories for: 40.1. /usr/bin and Other Software Directories

instance of an object, application resources associated with: 6.3. X Resource Syntax

instance variables (Python): 42.3.3. Everything's an Object

instances of Python classes: 42.3.3. Everything's an Object

int command (awk): 20.10.7. Alphabetical Summary of Commands

INT (interrupt) signal: 24.10. What Are Signals?

killing processes waiting for NFS resources: 24.12. Destroying Processes with kill

sending with CTRL-c command: 24.11. Killing Foreground Jobs

Integrated Development Environment (IDE), Emacs as: 19.2. Emacs Features: A Laundry List

interactive command-line editing: 30.1. The Lessons of History

30.14. Shell Command-Line Editing

bash: 30.14.5. bash Editing

Emacs editing mode: 30.14.2. Emacs Editing Mode

ksh (Korn shell): 30.14.4. ksh Editing

tcsh shell: 30.14.3. tcsh Editing

vi editing mode: 30.14.1. vi Editing Mode

zsh shell: 30.14.6. zsh Editing

interactive commands: 1.4. Communication with Unix

interactive logins, starting remote X clients from: 6.10.1. Starting Remote X Clients from Interactive Logins

interactive mode for shells: 27.3.2. Interactive Use Versus Shell Scripts

interactive programs

controlling with Expect program: 28.18. Expect

nice command and: 26.6. A nice Gotcha

testing with Expect: 28.18.3. Testing: A Story

interactive renaming of files: 10.10. Renaming a List of Files Interactively

interactive shells: 3.4. Login Shells, Interactive Shells

3.4.2. Interactive Shells

3.4.2. Interactive Shells

Bourne shell, ENV environment variable: 3.3. Shell Setup Files — Which, Where, and Why

setup files, reading at different times: 3.8. Setup Files Aren't Read When You Want?

interactive spell checking: 16.2. Check Spelling Interactively with ispell

interation in loops: 31.6. Loop Control: break and continue

intergers in Perl: 41.5. Perl Boot Camp, Part 2: Variables and Data Types

internal commands: 1.9. Internal and External Commands

internal field separator (IFS) shell variable: 36.23.3. Using set and IFS

Internet: 1.21. Unix Networking and Communications

Internet Control Message Protocol (see ICMP)

Internet Message Access Protocol (IMAP): 46.8. Mail — SMTP, POP, and IMAP

Internet Protocol (IP): 46.1. TCP/IP — IP Addresses and Ports

interoperability, POSIX standard: 1.3. The Core of Unix

interpolating variables: 41.4. Perl Boot Camp, Part 1: Typical Script Anatomy

interpretation of commands by shells (see commands)

interpreted languages: 42.1. What Is Python?

interpreter, Python: 42.2. Installation and Distutils

interpreter, perl: 41.2. Checking your Perl Installation

interrupt characters, setting: 5.8. Setting Your Erase, Kill, and Interrupt Characters

interrupting commands, in a string of commands separated by semicolons: 28.16. Separating Commands with Semicolons

interrupting jobs: 23.9. Stop Background Output with stty tostop

interrupts, shell scripts, trapping exits caused by: 35.17. Trapping Exits Caused by Interrupts

intr key: 5.8. Setting Your Erase, Kill, and Interrupt Characters

intruder detection: 48.7. Intruder Detection

-inum operator (find command): 9.9. Running Commands on What You Find

9.24. Finding the (Hard) Links to a File

14.15. Removing a Strange File by its i-number

invalid symbolic links: 10.6. Stale Symbolic Links

"inverse if" statement: 35.13. Test Exit Status with the if Statement

35.14. Testing Your Success

invisible files: 14.16. Problems Deleting Directories

I/O-bound processes: 26.1. Timing Is Everything

nice command, effect of: 26.5. Know When to Be "nice" to Other Users...and When Not To

IP Control Message Protocol (see ICMP)

IP (Internet Protocol)

addresses

DHCP and: 46.10. Dynamic Host Configuration Protocol (DHCP)

displaying with dig: 46.3. Status and Troubleshooting

mapping hostnames to: 46.9. Domain Name Service (DNS)

network devices: 44.8. Network Devices — ifconfig

private network addresses and: 46.11. Gateways and NAT

addresses and ports: 46.1. TCP/IP — IP Addresses and Ports

addresses: 46.1.1. Internet Protocol (IP)

ports: 46.1.2. Layer 4 Protocols: TCP, UDP, and ICMP

IP masquerading on Linux: 46.11. Gateways and NAT

TCP, UDP, and ICMP with: 46.1.2. Layer 4 Protocols: TCP, UDP, and ICMP

Version 6 (IPv6): 46.1.1. Internet Protocol (IP)

irc utility: 1.21. Unix Networking and Communications

IRIX systems

restricted shell (rsh): 6.10.2. Starting a Remote Client with rsh and ssh

isc-dhcpd daemon: 46.10. Dynamic Host Configuration Protocol (DHCP)

ispell program: 16.2. Check Spelling Interactively with ispell

iterating

through arrays: 41.5.2. Arrays

through key-value pairs in hashes: 41.5.3. Hashes

through list elements with foreach: 41.6. Perl Boot Camp, Part 3: Branching and Looping

iterating shell variables over arguments: 37.5. Quoting and Command-Line Parameters

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