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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
- (see also pattern matching; special characters)
- !$ 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
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