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: W

wait command : 38.16. Why You Can't Kill a Zombie

in background jobs : 44.7. Exit Status of UNIX Processes

wallclock time

39.3. The csh time variable
39.5. Why Is the System So Slow?

watch command vs. vis command : 51.7. When You Get Impatient

watchq script

38.11. Printer Queue Watcher: A Restartable Daemon Shell Script
52.4. Quick Descriptions of What's on the Disc

wc command

8.6.1. Portability
29.6. Counting Lines, Words, and Characters: wc

Web, described : 1.33. UNIX Networking and Communications

weekday in crontab entries : 40.12.1. Execution Scheduling

werase key : 5.9. Setting Your Erase, Kill, and Interrupt Characters

whatis command : 50.4. whatis: One-Line Command Summaries

advantages : 50.4. whatis: One-Line Command Summaries
apropos compared to : 50.4. whatis: One-Line Command Summaries
examples : 50.4. whatis: One-Line Command Summaries

whence command : 4.10. Find All Command Versions with whereiz

whereis command

16.10. findcmd: Find a Command in Your Search Path

50.5. whereis: Finding Where a Command Is Located

-b option : 50.5. whereis: Finding Where a Command Is Located

examples

44.21. Picking a Name for a New Command
50.5. whereis: Finding Where a Command Is Located

-m option : 50.5. whereis: Finding Where a Command Is Located

-s option : 50.5. whereis: Finding Where a Command Is Located

-u option : 50.5. whereis: Finding Where a Command Is Located

whereiz script

4.10. Find All Command Versions with whereiz
52.4. Quick Descriptions of What's on the Disc

which command

16.10. findcmd: Find a Command in Your Search Path

50.8. Which Version Am I Using?

-a option : 4.10. Find All Command Versions with whereiz

alternatives to : 50.8. Which Version Am I Using?

examples

44.21. Picking a Name for a New Command
50.8. Which Version Am I Using?

setting the prompt variable : 2.10. Gotchas in set prompt Test

which program : 52.4. Quick Descriptions of What's on the Disc

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

while loops

44.10.2. Looping Until a Command Fails

44.15.2. With a Loop

in C shell : 47.4.2. Expressions

case statement used in : 45.22. Handling Files Line-by-Line

case statement used with : 44.17. Handling Arguments with while and shift

examples

44.10.2. Looping Until a Command Fails
44.17. Handling Arguments with while and shift
45.32. A Better read Command: grabchars

for loops compared to : 45.16. Standard Input to a for Loop

handling command-line arguments : 44.17. Handling Arguments with while and shift

jot command in : 45.11. The Multipurpose jot Command

multiple commands : 45.19. A while Loop with Several Loop Control Commands

read command used in

45.16. Standard Input to a for Loop
45.22. Handling Files Line-by-Line

redirected : 45.22. Handling Files Line-by-Line

shift command used with : 44.17. Handling Arguments with while and shift

test command used with : 44.17. Handling Arguments with while and shift

until loops compared to : 44.10.2. Looping Until a Command Fails

whitespace : 1.2. Who Listens to What You Type?

adding or deleting : 25.9. Adding and Deleting White Space

adding/deleting : 25.13. pushin: Squeeze Out Extra White Space

cat command and : 25.6. What's in That White Space?

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

in filenames

8.16. Quoting Handles Special Characters in Filenames
16.13. Can't Access a File? Look for Spaces in the Name

newline character : 1.29. When Is a File Not a File?

newline characters

4.9. Setting Up vi with the .exrc File
8.6.1. Portability
25.10. Squash Extra Blank Lines

problems with xargs : 9.22. xargs: Problems with Spaces and Newlines

TAB characters

8.18. Here Documents
24.6. Save Space with Tab Characters

wc command and : 29.6. Counting Lines, Words, and Characters: wc

"who are you?" error message : 50.12. Common UNIX Error Messages

who command

9.16. Command Substitution
51.4. Who's On?
52.4. Quick Descriptions of What's on the Disc
examples : 44.2. Writing a Simple Shell Program
on PowerTools disk : 51.4. Who's On?

whoami command : 2.12. Automatic Setups for Different Terminals

errors caused by : 50.12. Common UNIX Error Messages

wildcard characters

in case statements : 44.6. Pattern Matching in case Statements

wildcards

1.16. Wildcards

21.14. Automatically Appending the Date to a Filename

!$ sequence with : 11.6. Using !$ for Safety with Wildcards

with aliases : 8.9. Wildcards Inside of Aliases

creating files : 9.4. Use Wildcards to Create Files?

deleting files and : 23.2. rm and Its Dangers

in directory names : 17.2. Delving Through a Deep Directory Tree

file-naming : 15.1. File Naming Wildcards

find command and

17.4. Looking for Files with Particular Names
17.18. Using "Fast find"

in case statements : 44.5. Test String Values with Bourne Shell case

in for loops : 44.16. Handling Command-Line Arguments with a for Loop

matching dot files : 15.5. Matching All "Dot Files" with Wildcards

passing to programs : 1.18. Who Handles Wildcards?

in pathnames

15.1. File Naming Wildcards
15.6. Maybe You Shouldn't Use Wildcards in Pathnames

for regular expressions : (see regular expressions)

regular expression versus : 26.2. Don't Confuse Regular Expressions with Wildcards

set command using : 44.19. The Bourne Shell set Command

for special filename characters : 23.12. Using Wildcards to Delete Files with Strange Names

tar archives and : 20.9. When a Program Doesn't Understand Wildcards

window sessions

unlocking : 42.2. Fixing a Hung Terminal or Job

window variable

for setting screen size : 42.5. Checklist: Screen Size Messed Up?

windows

checking height and width : 42.6.2. Screen Width and Height: screensize
running software written for ASCII terminals : 41.8. ptys and Window Systems
testing for exactly 80 columns : 42.6.1. Single Line Screen Width: 80cols
testing long-line wrapping : 42.6.3. Set Width, Test Line Wrapping: longlines

with : (see also under specific filename (at first

word lists

arrays compared to : 47.5. Using C Shell Arrays
in C shells : 47.5. Using C Shell Arrays
variables set to : 46.7. Quoting and Command-Line Parameters

word vectors : 8.12. Which One Will the C Shell Use?

word-erase character : 9.2. Fix a Line Faster with Line-Kill and Word-Erase

wordfreq script

29.7. Count How Many Times Each Word Is Used
52.4. Quick Descriptions of What's on the Disc

wordlists : (see dictionary files)

words

counting

29.6. Counting Lines, Words, and Characters: wc
29.7. Count How Many Times Each Word Is Used

doubled : 29.8. Find a a Doubled Word

extracting : 29.10. Just the Words, Please

lists of : (see word lists)

searching multiple files for : 17.21. lookfor: Which File Has that Word?

spell checking : (see spell checking)

World Wide Web, described : 1.33. UNIX Networking and Communications

wraparound : 41.11. How termcap and terminfo Describe Terminals

write( ) : 20.6. Writing a Tape Drive on a Remote Machine

write command (ex) : 33.4. Useful ex Commands

write permission : 22.2. Tutorial on File and Directory Permissions

absence of : (see read-only files)
modifying without : 22.11. A Loophole: Modifying Files Without Write Access
sticky bit and : 22.6. Protecting Files with the Sticky Bit

write utility : 1.33. UNIX Networking and Communications

writing

13.12. Writing to Multiple Terminals for Demonstrations
(see also output)

ww function : 29.8. Find a a Doubled Word

WYSIWYG programs : 43.12.4. WYSIWYG Document Processors

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

The UNIX CD Bookshelf Navigation