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Index: D

daemons : 1.14. The Kernel and Daemons

controlling terminal and : 38.6. The Controlling Terminal
restarting with the kill command : 38.11. Printer Queue Watcher: A Restartable Daemon Shell Script

dashes : (see - (hyphen))

databases

created using awk : 48.10. Working with Names and Addresses
index program for creating : 48.11. The index Database Program
searching : 17.19. Finding Files (Much) Faster with a find Database

date : (see time)

date command

7.12. External Commands Send Signals to Set Variables
16.16. Picking a Unique Filename Automatically
21.14. Automatically Appending the Date to a Filename
51.10. The date Command
52.4. Quick Descriptions of What's on the Disc
cal program using : 48.7. cal That Marks Today's Date
examples : 51.10. The date Command

day-of-month in crontab entries : 40.12.1. Execution Scheduling

dbm files : 24.18. Huge Files Might Not Take a Lot of Disk Space

dc program

49.1. bc: Simple Math at the Shell Prompt
(see also calculators)

DCL : (see VAX/VMS command language)

dd command

35.6. Low-Level File Butchery with dd
52.4. Quick Descriptions of What's on the Disc
performance and : 20.6. Writing a Tape Drive on a Remote Machine
restoring from remote tape drives : 20.5. Using tar to a Remote Tape Drive

dd utility

35.12. Converting Between ASCII and EBCDIC
35.13. Other Conversions with dd

dead processes : (see zombies)

debugging

44.9. Testing Your Success

(see also errors; standard error)

Bourne shell scripts

44.8. Test Exit Status with the if Statement
46.1. Tips for Debugging Shell Scripts

echo command used for : 46.2. Quoting Trouble? Think, Then Use echo

output

46.1.1. Use -xv
(see also standard output)

piping to pager : 46.1.1. Use -xv

debugging output : 46.1.1. Use -xv

decimals, ASCII character conversion : 45.11. The Multipurpose jot Command

decryption : (see encryption)

<defunct> status under System V : 38.10. Destroying Processes with kill

DEL (to interrupt) : 41.2.1. How We Made It This Far (Back?)

del script

23.6. A Faster Way to Remove Files Interactively
52.4. Quick Descriptions of What's on the Disc

DELETE : 41.2.2. Handling Most Characters

delete command : 52.4. Quick Descriptions of What's on the Disc

delete command (awk) : 33.11.7. Alphabetical Summary of Commands

delete command (ex) : 33.4. Useful ex Commands

DELETE key

deleting on command line : 9.2. Fix a Line Faster with Line-Kill and Word-Erase
erase character : 51.6. Cleaning script Files
location for : 2.13. A .cshrc.$HOST File for Per Host Setup

delete script : 23.9. delete: Protecting Files from Accidental Deletion

deleting

directories

23.17. Problems Deleting Directories
23.18. How Making and Deleting Directories Works
50.12. Common UNIX Error Messages

errors caused by : 50.12. Common UNIX Error Messages

files

1.15. Filenames

21.11. Safer Removing, Moving, and Copying

23.2. rm and Its Dangers

23.5. Remove Some, Leave Some

23.10. Deletion with Prejudice: rm -f

45.10. Removing a File Once It's Opened - for Security and Easy Cleanup

"by : 23.21. Removing Every File but One

by last access date : 23.20. Deleting Stale Files

emptying files instead of : 24.1. Instead of Removing a File, Empty It

find command and : 23.22. Using find to Clear Out Unneeded Files

by i-number : 23.16. Removing a Strange File by its I-number

interactively : 23.6. A Faster Way to Remove Files Interactively

safeguards against

20.13. SCCS Basics
21.11. Safer Removing, Moving, and Copying
23.7. Safer File Deletion in Some Directories
23.9. delete: Protecting Files from Accidental Deletion

with special filename characters : 23.11. Deleting Files with Odd Names

with unlink command : 23.15. Using unlink to Remove a File with a Strange Name

man pages : 23.19. Deleting (BSD) Manual Pages that Aren't Read

whitespace

25.9. Adding and Deleting White Space
25.13. pushin: Squeeze Out Extra White Space

wildcards and : 23.2. rm and Its Dangers

delta command (SCCS) : 20.13. SCCS Basics

deroff command : 29.10. Just the Words, Please

detaching sessions : 3.7. Detaching a Session with screen

/dev directory : 13.1. Using Standard Input and Output

/dev/tty file

examples : 47.2.1.1. Writing Files

/dev/null file

examples

44.10.2. Looping Until a Command Fails
45.36. Shell Lockfile

/dev/null file

13.14. What Can You Do with an Empty File?
13.15. What to Do with a Full Bit Bucket :-)

/dev/tty file : 13.3. Send (only) Standard Error Down a Pipe

/dev/zero file : 13.14. What Can You Do with an Empty File?

device drivers, resetting : 38.15. Cleaning Up an Unkillable Process

device numbers : 17.22. Finding the Links to a File

df command

17.22. Finding the Links to a File
24.9. How Much Disk Space?
52.4. Quick Descriptions of What's on the Disc
examples : 45.30.4. Using sed

dialback script : 9.26.1. Dialback

dictionary files : 29.1. The UNIX spell Command

adding to : 29.5. Adding Words to ispell's Dictionary

diff command

2.14. motd.diff: Show New Lines in Login Messages

28.1. Checking Differences with diff

52.4. Quick Descriptions of What's on the Disc

(see also bdiff command; ediff script)

-c option : 28.3. Context diffs

-e option

28.1. Checking Differences with diff
28.9. ex Scripts Built by diff

example : 33.6. Change Many Files by Editing Just One

-f option : 16.22. Comparing Two Directory Trees with dircmp

-h option : 28.7. diff for Very Long Files: bdiff

-t option : 28.10. Problems with diff and Tabstops

diff3 script

28.2. Comparing Three Different Versions with diff3
52.4. Quick Descriptions of What's on the Disc

diffmk command : 28.15. Show Changes in a troff File with diffmk

dir_path script

16.21. Finding All Directories with the Same Name
52.4. Quick Descriptions of What's on the Disc

dircmp command : 16.22. Comparing Two Directory Trees with dircmp

directories : 23.18. How Making and Deleting Directories Works

!$ sequence and : 11.3. My Favorite Is !$

absolute pathnames and : 14.2. Using Relative and Absolute Pathnames

access to : 1.25. Access to Directories

advantages of : 4.7. Make More Directories!

archives/backups of

20.1. tar in a Nutshell
20.8.1. Including Other Directories

automatic setup of : 14.14. Automatic Setup When You Enter/Exit a Directory

CD-ROM packages : 52.5.3.1. Directory Structure

changing : 14.5. Saving Time When You Change Directories: cdpath

copying/moving files to : 21.12. Copying Files to a Directory

creating : 4.8. Making Directories Made Easier

current

10.9. Shell Functions
14.3. What Good Is a Current Directory?
14.4. How Does UNIX Find Your Current Directory?
14.13. Which Directory Am I in, Really?

current working : 38.3. Managing Processes: Overall Concepts

deleting

23.17. Problems Deleting Directories
50.12. Common UNIX Error Messages

directory stack : 14.6. The Shells' pushd and popd Commands

emacs hacks : 4.4. Directories for Emacs Hacks

file representation in : 18.2. What's Really in a Directory

files in : 1.19. The Tree Structure of the Filesystem

finding : 14.10. Variables Help You Find Directories and Files

home

1.20. Your Home Directory
14.11. Finding (Anyone's) Home Directory, Quickly
(see home directory)

linking : 18.7. Linking Directories

links to : 18.4.2. Links to a Directory

listing at top of screen : 21.10. Keep a Directory Listing at Top of the Screen: dirtop

listing contents of : 16.8. The ls -d Option

matching with wildcards : 15.10. Wildcards that Match Only Directories

names of : 45.18.1. Introduction to basename and dirname

notification of change to : 21.8.1.3. Watching Directories

ownership

22.2.1. User, Group, and World
22.3. Who Will Own a New File?

parsing from pathnames : 16.17. Getting Directory Name from a File's Pathname

permissions

21.14. Automatically Appending the Date to a Filename
(see permissions)

printing files to : 9.5. Build Strings with { }

private

4.5. Private (Personal) Directories
4.7. Make More Directories!

redundantly named : 16.21. Finding All Directories with the Same Name

remotely mounted : 5.6. Checklist: Terminal Hangs When I Log In

root : (see root directory)

safer file deletion in : 23.7. Safer File Deletion in Some Directories

in search path : 8.7. Setting Your Search Path

subdirectories : 1.20. Your Home Directory

creating : 9.5. Build Strings with { }
links in : 18.4.2. Links to a Directory
listing with ls -R : 16.4. List All Subdirectories with ls -R

on tape drives : 20.4.1. Restoring a Few Files

temporary files : (see /tmp directory)

temporary changes in : 13.7.2. Temporary Change of Directory and Environment

trees of

16.19. stree: Simple Directory Tree
16.22. Comparing Two Directory Trees with dircmp
16.23. Comparing Filenames in Two Directory Trees
(see trees, directory)
find command and : 17.2. Delving Through a Deep Directory Tree

trimming : 24.15. Trimming a Directory

"directory not empty" error message : 50.12. Common UNIX Error Messages

directory stacks : 14.6. The Shells' pushd and popd Commands

in arrays : 47.5. Using C Shell Arrays

directory structure : 52.5.3.1. Directory Structure

dirname command

16.17. Getting Directory Name from a File's Pathname
45.18. Using basename and dirname
52.4. Quick Descriptions of What's on the Disc
bugs in : 45.18.1. Introduction to basename and dirname
examples : 45.18. Using basename and dirname
loops using : 45.18.2. Use with Loops

dirs command

14.6. The Shells' pushd and popd Commands
14.13. Which Directory Am I in, Really?
output in prompt setting : 7.11. dirs in Your Prompt: Better than $cwd

dirtop script

21.10. Keep a Directory Listing at Top of the Screen: dirtop
52.4. Quick Descriptions of What's on the Disc

disk bandwidth issues

forms : 39.12.3. The I/O Subsystem

disk quotas

22.20. Why Can't You Change File Ownership Under BSD UNIX?
24.17. Disk Quotas

disk space

compressed files and : (see compressed files)
emptyig files and : 24.1. Instead of Removing a File, Empty It
hard links vs. symbolic links : 14.14. Automatic Setup When You Enter/Exit a Directory
links and : 24.4. Save Space with a Link
log files and : 24.2. Save Space with Bit Bucket Log Files and Mailboxes
memory contention : 39.12.2. The Memory Subsystem
reports on : 24.9. How Much Disk Space?
strip command and : 24.13. Save Space in Executable Files with strip
trimming directories and : 24.15. Trimming a Directory
unlinking open files and : 24.3. Unlinking Open Files Isn't a Good Idea
vtree program and : 16.20. The vtree Visual Directory Tree Programs

DISPLAY environment variable

2.12. Automatic Setups for Different Terminals
6.3. Predefined Environment Variables

display, vis compared to : 51.7. When You Get Impatient

ditroff program : 43.13. The Text Formatters nroff, troff, ditroff, ...

do command (awk) : 33.11.7. Alphabetical Summary of Commands

doctor program : 32.13. An Absurd Amusement

documentation : (see manual pages)

dollar sign : (see $)

done command : 50.3. apropos on Systems Without apropos

dot : (see .)

dot files : 16.11. Showing Hidden Files with ls -A and -a

matching with wildcards : 15.5. Matching All "Dot Files" with Wildcards

double quotes : (see ")

double-spacing text : 25.12. Double Space, Triple Space ...

doublespace script : 52.4. Quick Descriptions of What's on the Disc

Dougherty, Dale : 1.7. Power Grows on You

du command

24.9. How Much Disk Space?
52.4. Quick Descriptions of What's on the Disc

dump utility : 1.23. File Access Permissions

dup, file descriptors : 47.2.1.1. Writing Files

duplicate lines, deleting

35.20. Quick Reference: uniq
36.6. Miscellaneous sort Hints

DVI format documentation : 52.5.3.4. Installing a Single Program

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