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: Symbols and Numbers

&& operator

UNIX Power Tools, 11.9. Running a Series of Commands on a File
UNIX Power Tools, 44.9. Testing Your Success
UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators
UNIX Power Tools, 48.4.3. Automating Your Own Calendar
sed & awk, 7.8. Relational and Boolean Operators

&= operator : UNIX Power Tools, 47.4.3.1. Assignment Operators

for background processes

Learning the UNIX Operating System, 6.1. Running a Command in the Background
UNIX Power Tools, 1.27. How Background Processing Works
UNIX Power Tools, 38.3. Managing Processes: Overall Concepts
(see also background processes/jobs)

C shell operator : UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators

for condition tests

Learning the Korn Shell, 5.1.3.3. File Attribute Checking
Learning the Korn Shell, 7.2.2.3. Code blocks
Learning the Korn Shell, A.1. The Bourne Shell

escaping special characters using : UNIX Power Tools, 51.3. ASCII Characters: Listing and Getting Values

ex command : UNIX in a Nutshell, Chapter 9, Reference: &

for exit statuses

Learning the Korn Shell, 5.1.2. Combinations of Exit Statuses
Learning the Korn Shell, 5.5. while and until
Learning the Korn Shell, A.2. The IEEE 1003.2 POSIX Shell Standard

logical operator for expr : UNIX Power Tools, 45.28. Quick Reference: expr

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

in replacement text

sed & awk, 5.3. Substitution
sed & awk, 5.3.1. Replacement Metacharacters

* (asterisk)

Learning the UNIX Operating System, 4.3. File and Directory Wildcards

Learning the UNIX Operating System, 4.4.5.1. rm

** (exponentiation) operator : sed & awk, 7.6. Expressions

**= (assignment) operator : sed & awk, 7.6. Expressions

*= (assignment) operator

UNIX Power Tools, 47.4.3.1. Assignment Operators
sed & awk, 7.6. Expressions

accessing entire array : Learning the Korn Shell, 6.3. Arrays

built-in variable

Learning the Korn Shell, 4.2.1. Positional Parameters
Learning the Korn Shell, 5.2. for
Learning the Korn Shell, 5.3. case
Learning the Korn Shell, 5.4. select

examples : UNIX Power Tools, 50.6. Searching Online Manual Pages

metacharacter (regular expression operator)

Learning the Korn Shell, 1.6.2. Filenames and Wildcards
Learning the Korn Shell, 9.2.3.3. Breakpoints
Learning the Korn Shell, 4.3.2.1. Regular expression basics
Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions
Learning the UNIX Operating System, 4.3. File and Directory Wildcards
Learning the UNIX Operating System, 4.4.5.1. rm
UNIX Power Tools, 1.16. Wildcards
UNIX Power Tools, 15.2. Filename Wildcards in a Nutshell
UNIX Power Tools, 26.3. Understanding Expressions
UNIX Power Tools, 26.4.6. Repeating Character Sets with *
sed & awk, 3.1. That's an Expression
sed & awk, 3.2.5. Repeated Occurrences of a Character

multiplication operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 47.4.3.2. Arithmetic Operators
sed & awk, 7.6. Expressions

in pcal : UNIX Power Tools, 48.9. PostScript Calendars with pcal

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

@ (at sign) : UNIX Power Tools, 9.5. Build Strings with { }

built-in variable : Learning the Korn Shell, 4.2.1. Positional Parameters

csh command : UNIX in a Nutshell, Chapter 5, Reference: @

preserving whitespace : Learning the Korn Shell, 6.3. Arrays

regular expression operator

Learning the Korn Shell, 4.3.2.1. Regular expression basics
Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions
Learning the Korn Shell, 9.2.3.3. Breakpoints

@ commands (csh)

UNIX Power Tools, 47.4.2. Expressions
UNIX Power Tools, 47.4.4. Examples

@-functions (vi) : UNIX Power Tools, 31.4. vi @-Functions

\ (backslash)

sed & awk, 7.6. Expressions

(see also escape sequences, awk)

\{ \} metacharacters : UNIX Power Tools, 26.4.7. Matching a Specific Number of Sets with \ { and \ }

\<, \> escape sequences

UNIX Power Tools, 26.4.8. Matching Words with \ < and \ >
sed & awk, 3.2.11. What's the Word? Part II
sed & awk, 11.2.3.4. Extended regular expressions

 metacharacters : UNIX Power Tools, 26.4.9. Remembering Patterns with \ (, \ ), and \1

\`, \' escape sequences : sed & awk, 11.2.3.4. Extended regular expressions

\1, \2, ... metacharacters : UNIX Power Tools, 26.4.9. Remembering Patterns with \ (, \ ), and \1

continuation characters

Learning the Korn Shell, 1.9.4. Continuing Lines
UNIX Power Tools, 8.14.4. Multiline Quoting
UNIX Power Tools, 8.15.2. How Quoting Works
UNIX Power Tools, 9.13. Multiline Commands, Secondary Prompts

in C shell scripts : UNIX Power Tools, 44.14. Putting awk, sed, etc., Inside Shell Scripts

character classes and : sed & awk, 3.2.4. Character Classes

escaping special characters

Learning the Korn Shell, 1.9.2. Backslash-escaping
UNIX Power Tools, 8.6.1. Portability
UNIX Power Tools, 10.3. C Shell Aliases with Command-Line Arguments

as metacharacter

sed & awk, 3.2. A Line-Up of Characters
sed & awk, 3.2.1. The Ubiquitous Backslash

placement of : UNIX Power Tools, 8.20. How Many Backslashes?

preventing history substitution : UNIX Power Tools, 8.5. Command-Line Evaluation

in prompt settings : UNIX Power Tools, 7.12. External Commands Send Signals to Set Variables

quoting and

Learning the Korn Shell, 1.9.3. Quoting Quotation Marks
UNIX Power Tools, 8.14.2. How Quoting Works

in replacement text

sed & awk, 5.3. Substitution
sed & awk, 5.3.1. Replacement Metacharacters

in stty command : UNIX Power Tools, 5.9. Setting Your Erase, Kill, and Interrupt Characters

` (backquotes)

command substitution

Learning the Korn Shell, 4.4. Command Substitution
Learning the Korn Shell, A.1. The Bourne Shell
UNIX Power Tools, 9.16. Command Substitution
obsolescence in next release : Learning the Korn Shell, A.7. The Future of the Korn Shell

examples

UNIX Power Tools, 44.18. Standard Command-Line Parsing
UNIX Power Tools, 50.3. apropos on Systems Without apropos

for loops combined with : UNIX Power Tools, 45.16. Standard Input to a for Loop

nesting : UNIX Power Tools, 45.31. Nested Command Substitution

weak quotes : Learning the Korn Shell, 1.9.1. Quoting

! (bang) : sed & awk, 4.2. A Global Perspective on Addressing

!\* : UNIX Power Tools, 50.8. Which Version Am I Using?

!* variable : UNIX Power Tools, 10.3. C Shell Aliases with Command-Line Arguments

!: script : UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc

!= relational operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 47.4.3.4. Comparison Operators
sed & awk, 7.8. Relational and Boolean Operators

!~ (does not match) operator

sed & awk, 7.5.1. Referencing and Separating Fields
sed & awk, 7.8. Relational and Boolean Operators

automatic temporary files : UNIX Power Tools, 9.18.2. Automatic Temporary Files with !

with brackets wildcards : UNIX Power Tools, 15.2. Filename Wildcards in a Nutshell

branch command versus : sed & awk, 6.4.1. Branching

built-in variable : Learning the Korn Shell, 8.4.2. Process ID Variables and Temporary Files

C shell quoting : UNIX Power Tools, 8.15.2. How Quoting Works

csh and : sed & awk, 1.4. Four Hurdles to Mastering sed and awk

ex command : UNIX in a Nutshell, Chapter 9, Reference: !

history substitution commands : UNIX Power Tools, 11.7. History Substitutions

!:n* sequence

UNIX Power Tools, 11.4. My Favorite Is !:n*
UNIX Power Tools, 11.7. History Substitutions

!$ sequence

UNIX Power Tools, 10.3. C Shell Aliases with Command-Line Arguments
UNIX Power Tools, 11.3. My Favorite Is !$
UNIX Power Tools, 11.6. Using !$ for Safety with Wildcards
UNIX Power Tools, 11.7. History Substitutions

keyword in next Korn release : Learning the Korn Shell, A.7. The Future of the Korn Shell

NOT (negation) operator

Learning the Korn Shell, 5.1.3.3. File Attribute Checking
Learning the Korn Shell, 1.6.2. Filenames and Wildcards
UNIX Power Tools, 17.1. The find Command Is Great; The Problem Is Finding How to Use It
UNIX Power Tools, 17.6. Be an Expert on find Search Operators
UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators
sed & awk, 7.8. Relational and Boolean Operators

pattern addressing

sed & awk, 4.2. A Global Perspective on Addressing
sed & awk, A.2.1. Pattern Addressing

POSIX shell keyword : Learning the Korn Shell, A.2. The IEEE 1003.2 POSIX Shell Standard

preceding operators : UNIX Power Tools, 5.3. Setting the Terminal Type When You Log In

regular expression operator

Learning the Korn Shell, 4.3.2.1. Regular expression basics
Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions

terms for : UNIX Power Tools, 51.8. Type Bang Splat. Don't Forget the Rabbit Ears

test command using : UNIX Power Tools, 44.20. test: Testing Files and Strings

tilde (~) operator : sed & awk, 7.5.1. Referencing and Separating Fields

{ } (braces) : sed & awk, A.2.1. Pattern Addressing

\{ \} metacharacters

UNIX Power Tools, 26.4.7. Matching a Specific Number of Sets with \ { and \ }
sed & awk, 3.2. A Line-Up of Characters
sed & awk, 3.2.8. A Span of Characters

{ cmd } C shell operator : UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators

/{ /} metacharacters : UNIX Power Tools, 26.4.11. Extended Regular Expressions

in awk

sed & awk, 2.1. Awk, by Sed and Grep, out of Ed
sed & awk, 2.4.1. Running awk
sed & awk, 8.1. Conditional Statements

Bourne shell list operators : UNIX Power Tools, 13.8. Using {list} to Group Bourne Shell Commands

building strings : UNIX Power Tools, 9.5. Build Strings with { }

in C shell : UNIX Power Tools, 47.4.1. Variables

creating new files with : UNIX Power Tools, 1.16. Wildcards

filename wildcards

UNIX Power Tools, 15.2. Filename Wildcards in a Nutshell
UNIX Power Tools, 15.3. Adding { } Operators to Korn (and Bourne) Shells

find -exec command and : UNIX Power Tools, 17.10. Running Commands on What You Find

finding matching : Learning the vi Editor, 7.5.2. A Special Search Command

foreach loop and : UNIX Power Tools, 9.11. Repeating a Command with a foreach Loop

grouping sed commands in

sed & awk, 4.2.1. Grouping Commands
sed & awk, 5.1. About the Syntax of sed Commands

matching : Learning the vi Editor, 7.5.2. A Special Search Command

in shells : UNIX Power Tools, 1.18. Who Handles Wildcards?

with variable names : UNIX Power Tools, 6.8. Shell Variables

[ ] (brackets) metacharacters

sed & awk, 3.2. A Line-Up of Characters

sed & awk, 3.2.4. Character Classes

[ at start of escape sequence : UNIX Power Tools, 5.8. Terminal Escape Sequences

[ command

UNIX Power Tools, 44.20. test: Testing Files and Strings
UNIX Power Tools, 46.4. Stop Syntax Errors in Numeric Tests
UNIX Power Tools, 46.5. Stop Syntax Errors in String Tests

[[ ]] command

UNIX in a Nutshell, Chapter 4, Reference: [[ ]]
(see also condition tests)

[::] metacharacters : sed & awk, 3.2.4.3. POSIX character class additions

[..] metacharacters : sed & awk, 3.2.4.3. POSIX character class additions

[==] metacharacters : sed & awk, 3.2.4.3. POSIX character class additions

fast find and : UNIX Power Tools, 17.18. Using "Fast find"

filename wildcards

Learning the Korn Shell, 1.6.2. Filenames and Wildcards
Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions
Learning the UNIX Operating System, 4.3. File and Directory Wildcards
UNIX Power Tools, 9.4. Use Wildcards to Create Files?
UNIX Power Tools, 15.2. Filename Wildcards in a Nutshell
UNIX Power Tools, 26.4.4. Specifying a Range of Characters with [...]

sc program using : UNIX Power Tools, 49.8. It's Great to Have a Spreadsheet

^ (caret)

^[ : (see CTRL key)

^^ sequence

UNIX Power Tools, 11.5. My Favorite Is ^^
UNIX Power Tools, 11.7. History Substitutions

^= (assignment) operator

UNIX Power Tools, 47.4.3.1. Assignment Operators
sed & awk, 7.6. Expressions

C shell operator : UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators

character classes and

sed & awk, 3.2. A Line-Up of Characters
sed & awk, 3.2.4.2. Excluding a class of characters

for control characters : (see character classes/keys)

exponentiation operator : sed & awk, 7.6. Expressions

metacharacter

Learning the Korn Shell, 2.3.4. Moving Around in the History File
Learning the Korn Shell, 10.1. Installing the Korn Shell as the Standard Shell
UNIX Power Tools, 15.2. Filename Wildcards in a Nutshell
UNIX Power Tools, 26.4.1. The Anchor Characters: ^ and $
sed & awk, 3.2. A Line-Up of Characters
sed & awk, 3.2.7. Positional Metacharacters

within [ ] metacharacters : UNIX Power Tools, 26.4.5. Exceptions in a Character Set

in multiline pattern space : sed & awk, 6.1.1. Append Next Line

pipe character in Bourne shell

Learning the Korn Shell, 10.1. Installing the Korn Shell as the Standard Shell
Learning the Korn Shell, A.1. The Bourne Shell

: (colon)

:+ string operator

Learning the Korn Shell, 4.3.1. Syntax of String Operators
Learning the Korn Shell, 5.2. for

:- string operator

Learning the Korn Shell, 4.3.1. Syntax of String Operators
Learning the Korn Shell, 4.5. Advanced Examples: pushd and popd
Learning the Korn Shell, 9.2.3.4. Break conditions

:= string operator : Learning the Korn Shell, 4.3.1. Syntax of String Operators

:? string operator

Learning the Korn Shell, 4.3.1. Syntax of String Operators
Learning the Korn Shell, 4.5. Advanced Examples: pushd and popd

:p operator : UNIX Power Tools, 11.10. Check Your History First with :p

alternative to # : UNIX Power Tools, 45.9. The Unappreciated Bourne Shell ":" Operator

colon-separated lists : UNIX Power Tools, 4.10. Find All Command Versions with whereiz

comment character

UNIX Power Tools, 45.2. The Story of : # #!
UNIX Power Tools, 45.9. The Unappreciated Bourne Shell ":" Operator

csh command : UNIX in a Nutshell, Chapter 5, Reference: :

examples : UNIX Power Tools, 44.18. Standard Command-Line Parsing

ksh command : UNIX in a Nutshell, Chapter 4, Reference: :

for labels : sed & awk, 6.4. Advanced Flow Control Commands

as logical operator for expr

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 45.28.1. Examples

loops using : UNIX Power Tools, 45.9. The Unappreciated Bourne Shell ":" Operator

no-op command : Learning the Korn Shell, 8.4. trap

as null character : UNIX Power Tools, 44.8. Test Exit Status with the if Statement

as parameter substitute

UNIX Power Tools, 45.9. The Unappreciated Bourne Shell ":" Operator
UNIX Power Tools, 45.12. Parameter Substitution

sed command : UNIX in a Nutshell, Chapter 10, Reference: :

separating fields

UNIX Power Tools, 1.9. Which Shell Am I Running?
UNIX Power Tools, 5.6. Checklist: Terminal Hangs When I Log In

separating values : UNIX Power Tools, 5.3. Setting the Terminal Type When You Log In

sh command : UNIX in a Nutshell, Chapter 4, Reference: :

string editing operator : UNIX Power Tools, 9.6. String Editing (Colon) Operators

trap used with : UNIX Power Tools, 45.8. Handling Signals to Child Processes

, (comma) in filenames : UNIX Power Tools, 1.15. Filenames

$ (dollar sign)

. (dot)

. command : UNIX Power Tools, 44.23. Reading Files with the . and source Commands

.. for parent directory

Learning the Korn Shell, 1.6.1.3. Changing working directories
Learning the UNIX Operating System, 3.1.5.2. Relative pathnames up
Learning the UNIX Operating System, 3.1.8.1. ls
Learning the UNIX Operating System, 4.4.2.1. cp
UNIX Power Tools, 18.4.2. Links to a Directory

for current directory

Learning the Korn Shell, 1.6.1.3. Changing working directories
Learning the UNIX Operating System, 3.1.8.1. ls
Learning the UNIX Operating System, 4.4.2.1. cp
UNIX Power Tools, 18.4.2. Links to a Directory

in filenames

Learning the Korn Shell, 1.6.2. Filenames and Wildcards
Learning the UNIX Operating System, 4.2. File and Directory Names
UNIX Power Tools, 1.15. Filenames
UNIX Power Tools, 1.16. Wildcards
(see also dot files)

in pathnames : UNIX Power Tools, 1.21. Making Pathnames

regular expression metacharacter

UNIX Power Tools, 26.3. Understanding Expressions
UNIX Power Tools, 26.4.3. Match any Character with . (Dot)
sed & awk, 3.1. That's an Expression
sed & awk, 3.2.2. A Wildcard
sed & awk, 3.2.5. Repeated Occurrences of a Character

to run a script : Learning the Korn Shell, 4.1. Shell Scripts and Functions

terms for : UNIX Power Tools, 51.8. Type Bang Splat. Don't Forget the Rabbit Ears

= (equal sign)

== (equal to) operator

UNIX Power Tools, 47.4.3.4. Comparison Operators
sed & awk, 7.8. Relational and Boolean Operators

=~ C shell operator : UNIX Power Tools, 47.4.3.4. Comparison Operators

for alias definitions : UNIX Power Tools, 10.4. Aliases in ksh and bash

arithmetic operator for expr : UNIX Power Tools, 45.28.1. Examples

C shell operator : UNIX Power Tools, 47.4.3.1. Assignment Operators

ex command : UNIX in a Nutshell, Chapter 9, Reference: =

for printing line numbers : sed & awk, 5.9. Print Line Number

relational operator for expr

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 45.28.1. Examples

sed command : UNIX in a Nutshell, Chapter 10, Reference: =

# (hash mark)

: (colon) used in place of : UNIX Power Tools, 45.9. The Unappreciated Bourne Shell ":" Operator

#! notation

UNIX Power Tools, 8.17. verbose and echo Variables Show Quoting

UNIX Power Tools, 45.2. The Story of : # #!

UNIX Power Tools, 45.4. Fun with #!

UNIX in a Nutshell, Chapter 4, Reference: #!shell

UNIX in a Nutshell, Chapter 5, Reference: #!

Bourne shell scripts using

UNIX Power Tools, 44.2. Writing a Simple Shell Program
UNIX Power Tools, 44.4. Testing How Your System Executes Files

character limit : UNIX Power Tools, 45.4. Fun with #!

examples

UNIX Power Tools, 45.3. Don't Need a Shell for Your Script? Don't Use One
UNIX Power Tools, 45.4. Fun with #!

executing files without showing : UNIX Power Tools, 45.5. A File That Shows Itself... and What #! Does

invoking awk

sed & awk, 10.9. Invoking awk Using the #! Syntax
sed & awk, B.1.1. Shell Wrapper for Invoking awk

making programs executable : UNIX Power Tools, 45.4. Fun with #!

## pattern-matching operator

Learning the Korn Shell, 4.3.3. Pattern-matching Operators
Learning the Korn Shell, 6.2.2. Arithmetic Variables and Assignment

#n for suppressing output : sed & awk, 5.2. Comment

alternatives to : UNIX Power Tools, 45.9. The Unappreciated Bourne Shell ":" Operator

built-in variable : Learning the Korn Shell, 4.2.1. Positional Parameters

for comments

Learning the Korn Shell, 4.3.1. Syntax of String Operators
UNIX Power Tools, 10.2.1. Simple Aliases
sed & awk, 5.2. Comment
sed & awk, 7.4.1. Describing Your Script
sed & awk, B.2.2.2. Comments

in crontab entries : UNIX Power Tools, 40.12.1. Execution Scheduling

csh command

UNIX in a Nutshell, Chapter 5, Reference: #
UNIX in a Nutshell, Chapter 5, Reference: #!

ksh command

UNIX in a Nutshell, Chapter 4, Reference: #
UNIX in a Nutshell, Chapter 4, Reference: #!shell

length operator : Learning the Korn Shell, 4.3.4. Length Operator

pattern-matching operator

Learning the Korn Shell, 4.3.3. Pattern-matching Operators
Learning the Korn Shell, 4.5. Advanced Examples: pushd and popd
Learning the Korn Shell, 5.5. while and until

sh command

UNIX in a Nutshell, Chapter 4, Reference: #
UNIX in a Nutshell, Chapter 4, Reference: #!shell

shell script comments : UNIX Power Tools, 45.2. The Story of : # #!

size of an array : Learning the Korn Shell, 6.3. Arrays

- (hyphen)

-= (assignment) operator

UNIX Power Tools, 47.4.3.1. Assignment Operators
sed & awk, 7.6. Expressions

-- (decrement) operator : sed & awk, 7.6. Expressions

-- (two dashes) as argument to set command : UNIX Power Tools, 44.19. The Bourne Shell set Command

character classes and : sed & awk, 3.2.4.1. A range of characters

for command-line options

Learning the UNIX Operating System, 1.2. Syntax of UNIX Command Lines
UNIX Power Tools, 44.16. Handling Command-Line Arguments with a for Loop
UNIX Power Tools, 44.17. Handling Arguments with while and shift
UNIX Power Tools, 44.18. Standard Command-Line Parsing

filenames starting with : UNIX Power Tools, 23.14. Handling a Filename Starting with a Dash (-)

with << operator : UNIX Power Tools, 8.18. Here Documents

in login shell : UNIX Power Tools, 2.16. Approved Shells: Using Unapproved Login Shell

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

for stdin (on command line) : UNIX Power Tools, 13.13. The "Filename" -

subtraction operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 47.4.3.2. Arithmetic Operators
sed & awk, 7.6. Expressions

< (left angle bracket)

<= relational operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators
UNIX Power Tools, 47.4.3.4. Comparison Operators
sed & awk, 7.8. Relational and Boolean Operators

<< operator

UNIX Power Tools, 8.18. Here Documents
UNIX Power Tools, 19.2. Introduction to Shell Archives

<<- operator

UNIX Power Tools, 8.18. Here Documents
UNIX Power Tools, 9.14. Using Here Documents for Form Letters, etc.

/< /> metacharacters : UNIX Power Tools, 26.4.11. Extended Regular Expressions

\< \> metacharacters : UNIX Power Tools, 26.4.8. Matching Words with \ < and \ >

C shell operator : UNIX Power Tools, 47.4.3.4. Comparison Operators

ex command : UNIX in a Nutshell, Chapter 9, Reference: < >

examples : UNIX Power Tools, 48.4.3. Automating Your Own Calendar

input redirection operator

Learning the Korn Shell, 1.7.2. I/O Redirection
Learning the UNIX Operating System, 5.1. Standard Input and Standard Output

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

relational operator for expr : UNIX Power Tools, 45.28. Quick Reference: expr

( ) (parentheses)

sed & awk, 2.2.1. Scripting

sed & awk, 3.2. A Line-Up of Characters

sed & awk, 3.2.10. Grouping Operations

 metacharacters : UNIX Power Tools, 26.4.9. Remembering Patterns with \ (, \ ), and \1

(( )) : (see condition tests, arithmetic)

commands printed in : UNIX Power Tools, 38.7. Why ps Prints Some Commands in Parentheses

in extended regular expressions

UNIX Power Tools, 26.4.11. Extended Regular Expressions
UNIX Power Tools, 47.4.2. Expressions
sed & awk, 5.3.1. Replacement Metacharacters

grouping condition tests : Learning the Korn Shell, 5.1.3.3. File Attribute Checking

grouping expressions using : UNIX Power Tools, 47.5. Using C Shell Arrays

as operators : UNIX Power Tools, 2.2. Shell Setup Files-Which, Where, and Why

subshell operators

Learning the Korn Shell, 5.1.3.3. File Attribute Checking
Learning the Korn Shell, 8.6.2. Nested Subshells
UNIX Power Tools, 13.7. The () Subshell Operators

within arithmetic expressions : Learning the Korn Shell, 6.2. Integer Variables and Arithmetic

% (percent sign)

%= (assignment) operator

UNIX Power Tools, 47.4.3.1. Assignment Operators
sed & awk, 7.6. Expressions

%% pattern-matching operator

Learning the Korn Shell, 4.3.3. Pattern-matching Operators
Learning the Korn Shell, 4.5. Advanced Examples: pushd and popd
Learning the Korn Shell, 5.5. while and until
Learning the Korn Shell, 6.2.2. Arithmetic Variables and Assignment

arithmetic operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 47.4.3.2. Arithmetic Operators

C shell prompt : UNIX Power Tools, 7.1. Why Change Your Prompt?

format specifications : sed & awk, 7.9. Formatted Printing

job numbers

Learning the Korn Shell, 8.2.1. Foreground and Background
Learning the Korn Shell, 8.3.2. kill
Learning the Korn Shell, A.1. The Bourne Shell
UNIX Power Tools, 12.1.1. Foreground and Background
UNIX Power Tools, 12.3. The "Current Job" Isn't Always What You Expect

modulo operator : sed & awk, 7.6. Expressions

pattern-matching operator

Learning the Korn Shell, 4.3.3. Pattern-matching Operators
Learning the Korn Shell, 5.2. for
Learning the Korn Shell, 5.3. case

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

+ (plus sign)

+= (assignment) operator

UNIX Power Tools, 47.4.3.1. Assignment Operators
sed & awk, 7.6. Expressions

++ (increment) operator : sed & awk, 7.6. Expressions

addition operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 45.28.1. Examples
UNIX Power Tools, 47.4.3.2. Arithmetic Operators
sed & awk, 7.6. Expressions

in job reports : UNIX Power Tools, 12.1.1. Foreground and Background

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

regular expression metacharacter

Learning the Korn Shell, 4.3.2.1. Regular expression basics
Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions
UNIX Power Tools, 26.4.11. Extended Regular Expressions
sed & awk, 3.2. A Line-Up of Characters
sed & awk, 3.2.5. Repeated Occurrences of a Character
sed & awk, 7.4. Pattern Matching

? (question mark)

?*) wildcard : UNIX Power Tools, 44.6. Pattern Matching in case Statements

?: (conditional) operator

sed & awk, 8.1.1. Conditional Operator
sed & awk, 11.1.3. The C Conditional Expression

?) wildcard : UNIX Power Tools, 44.6. Pattern Matching in case Statements

built-in variable

Learning the Korn Shell, 5.1.1. Exit Status and Return
Learning the Korn Shell, 9.1.2.2. ERR
Learning the Korn Shell, 9.2.5. Exercises
UNIX Power Tools, 6.9. Special C Shell Variables
UNIX Power Tools, 44.7. Exit Status of UNIX Processes

metacharacter (regular expression operator)

Learning the Korn Shell, 1.6.2. Filenames and Wildcards
Learning the Korn Shell, 4.3.2.1. Regular expression basics
Learning the Korn Shell, 4.3.2.2. Korn shell versus awk/egrep regular expressions
Learning the UNIX Operating System, 4.3. File and Directory Wildcards
UNIX Power Tools, 1.16. Wildcards
UNIX Power Tools, 15.2. Filename Wildcards in a Nutshell
UNIX Power Tools, 26.4.11. Extended Regular Expressions
sed & awk, 3.2. A Line-Up of Characters
sed & awk, 3.2.5. Repeated Occurrences of a Character

fast find and : UNIX Power Tools, 17.18. Using "Fast find"

foreach loop and : UNIX Power Tools, 9.11. Repeating a Command with a foreach Loop

in C shells : UNIX Power Tools, 47.5. Using C Shell Arrays

' (quotes, single) : UNIX Power Tools, 8.14.3. Single Quotes Inside Single Quotes?

around PS1 string : UNIX Power Tools, 7.8. Highlighting in Shell Prompts

with bash pre-prompt commands : UNIX Power Tools, 7.13. Pre-Prompt Commands in bash

passing wildcards to programs : UNIX Power Tools, 1.18. Who Handles Wildcards?

prompt setting and : UNIX Power Tools, 7.4. Faster Prompt Setting with Built-Ins

protecting special characters : UNIX Power Tools, 10.3. C Shell Aliases with Command-Line Arguments

quoting and

UNIX Power Tools, 8.14.2. How Quoting Works
UNIX Power Tools, 8.15. Differences Between Bourne and C Shell Quoting

sc program using : UNIX Power Tools, 49.8. It's Great to Have a Spreadsheet

" (quotes, double)

Learning the Korn Shell, 3.4.1. Variables and Quoting

sed & awk, 2.2. Command-Line Syntax

sed & awk, 2.3.1. Specifying Simple Instructions

aliases in : UNIX Power Tools, 10.2.2. Using More Complex Aliases

for comments : UNIX Power Tools, 4.9. Setting Up vi with the .exrc File

passing wildcards to programs : UNIX Power Tools, 1.18. Who Handles Wildcards?

prompt setting : UNIX Power Tools, 7.8. Highlighting in Shell Prompts

quoting and

UNIX Power Tools, 8.14.2. How Quoting Works
UNIX Power Tools, 8.15. Differences Between Bourne and C Shell Quoting

sc program using : UNIX Power Tools, 49.8. It's Great to Have a Spreadsheet

in sed scripts : UNIX Power Tools, 51.6. Cleaning script Files

terms for : UNIX Power Tools, 51.8. Type Bang Splat. Don't Forget the Rabbit Ears

> (right angle bracket)

>& operator : UNIX Power Tools, 13.5. Redirection in C Shell: Capture Errors, Too?

>= comparison operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 45.28.1. Examples
UNIX Power Tools, 47.4.3.4. Comparison Operators
sed & awk, 7.8. Relational and Boolean Operators

>> shell operator

UNIX Power Tools, 45.22. Handling Files Line-by-Line
UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators

with for loop : UNIX Power Tools, 9.12. The Bourne Shell for Loop

output redirection operator

Learning the Korn Shell, 1.7.2. I/O Redirection
Learning the UNIX Operating System, 5.1. Standard Input and Standard Output
Learning the UNIX Operating System, 5.1.1.1. The > operator
Learning the UNIX Operating System, 5.1.1.2. The >> operator
UNIX Power Tools, 6.9. Special C Shell Variables
sed & awk, 2.3.2.1. Saving output
sed & awk, 4.3. Testing and Saving Output
sed & awk, 10.5. Directing Output to Files and Pipes

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

relational operator

UNIX Power Tools, 45.28. Quick Reference: expr
sed & awk, 7.8. Relational and Boolean Operators

; (semicolon)

;; in case statement : Learning the Korn Shell, 5.4. select

statement separator

Learning the Korn Shell, 3.2. Aliases
Learning the Korn Shell, 5.1.3.1. String comparisons
Learning the Korn Shell, 9.2.5. Exercises
Learning the Korn Shell, A.6. Workalikes on PC Platforms
Learning the UNIX Operating System, 1.2. Syntax of UNIX Command Lines
UNIX Power Tools, 8.5. Command-Line Evaluation
UNIX Power Tools, 44.12. Trapping Exits Caused by Interrupts
sed & awk, 2.3.1. Specifying Simple Instructions
sed & awk, 2.4.1. Running awk
sed & awk, B.2.2.1. Line termination

/ (slash)

/*/ wildcard : UNIX Power Tools, 44.6. Pattern Matching in case Statements

/{ /} metacharacters : UNIX Power Tools, 26.4.11. Extended Regular Expressions

/= assignment operator

UNIX Power Tools, 47.4.3.1. Assignment Operators
sed & awk, 7.6. Expressions

/< /> metacharacters : UNIX Power Tools, 26.4.11. Extended Regular Expressions

// as delimiter

sed & awk, 2.1. Awk, by Sed and Grep, out of Ed
sed & awk, 5.3. Substitution

arithmetic operator for expr

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 45.28.1. Examples
UNIX Power Tools, 47.4.3.2. Arithmetic Operators
sed & awk, 7.6. Expressions

division operator : sed & awk, 7.6. Expressions

in ed commands : sed & awk, 2.1. Awk, by Sed and Grep, out of Ed

fast find and : UNIX Power Tools, 17.18. Using "Fast find"

in filenames

UNIX Power Tools, 1.15. Filenames
UNIX Power Tools, 1.16. Wildcards

in pathnames

Learning the UNIX Operating System, 3.1.4. Absolute Pathnames
UNIX Power Tools, 1.21. Making Pathnames
UNIX Power Tools, 14.2. Using Relative and Absolute Pathnames

pattern addressing

sed & awk, 2.1. Awk, by Sed and Grep, out of Ed
sed & awk, A.2.1. Pattern Addressing

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

for root directory

Learning the UNIX Operating System, 3.1.3. The Directory Tree
Learning the UNIX Operating System, 3.1.4. Absolute Pathnames
UNIX Power Tools, 1.19. The Tree Structure of the Filesystem

terms for : UNIX Power Tools, 51.8. Type Bang Splat. Don't Forget the Rabbit Ears

~ (tilde)

Learning the Korn Shell, 1.6.1.2. Tilde notation

Learning the Korn Shell, 7.3. Command-line Processing

Learning the Korn Shell, 7.3.1. Quoting

Learning the Korn Shell, A.1. The Bourne Shell

Learning the Korn Shell, A.2. The IEEE 1003.2 POSIX Shell Standard

sed & awk, 7.5.1. Referencing and Separating Fields

sed & awk, 7.8. Relational and Boolean Operators

~+ (current directory) : Learning the Korn Shell, 7.3. Command-line Processing

~- (previous directory) : Learning the Korn Shell, 7.3. Command-line Processing

C shell operator : UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators

ending filenames : UNIX Power Tools, 14.11. Finding (Anyone's) Home Directory, Quickly

ex command : UNIX in a Nutshell, Chapter 9, Reference: ~

ending filenames

UNIX Power Tools, 14.11. Finding (Anyone's) Home Directory, Quickly
UNIX Power Tools, 17.18. Using "Fast find"

for home directory

UNIX Power Tools, 7.11. dirs in Your Prompt: Better than $cwd
UNIX Power Tools, 14.11. Finding (Anyone's) Home Directory, Quickly

match operator

sed & awk, 7.5.1. Referencing and Separating Fields
sed & awk, 7.8. Relational and Boolean Operators

in pathnames : UNIX Power Tools, 1.21. Making Pathnames

in public domain Korn shell : Learning the Korn Shell, A.4. pdksh

within double quotes : Learning the Korn Shell, 3.4.1. Variables and Quoting

within variable expressions : Learning the Korn Shell, A.7. The Future of the Korn Shell

~ (tilde) notation

Learning the Korn Shell, 1.6.1.2. Tilde notation
Learning the Korn Shell, 7.3. Command-line Processing
Learning the Korn Shell, 7.3.1. Quoting
Learning the Korn Shell, A.1. The Bourne Shell
Learning the Korn Shell, A.2. The IEEE 1003.2 POSIX Shell Standard

_ (underscore) in filenames : UNIX Power Tools, 1.15. Filenames

| (vertical bar)

|&, background job with two-way pipes

Learning the Korn Shell, 8.5.4. Coroutines with Two-way Pipes
Learning the Korn Shell, 8.5.5. Two-way Pipes Versus Standard Pipes
UNIX Power Tools, 13.3. Send (only) Standard Error Down a Pipe
UNIX Power Tools, 13.5. Redirection in C Shell: Capture Errors, Too?

|= operator : UNIX Power Tools, 47.4.3.1. Assignment Operators

|| for condition tests

Learning the Korn Shell, 5.1.3.3. File Attribute Checking
Learning the Korn Shell, A.1. The Bourne Shell
UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators
sed & awk, 7.8. Relational and Boolean Operators

|| for exit statuses

Learning the Korn Shell, 5.1.2. Combinations of Exit Statuses
Learning the Korn Shell, 9.2.3.3. Breakpoints
Learning the Korn Shell, A.2. The IEEE 1003.2 POSIX Shell Standard
UNIX Power Tools, 26.4.11. Extended Regular Expressions
UNIX Power Tools, 44.7. Exit Status of UNIX Processes
UNIX Power Tools, 44.8. Test Exit Status with the if Statement
UNIX Power Tools, 44.9. Testing Your Success
UNIX Power Tools, 44.18. Standard Command-Line Parsing
UNIX Power Tools, 45.6. Making Sure Your Script Runs with Bourne Shell, Without #!
UNIX Power Tools, 46.6. Watch Out for Bourne Shell -e Bug
(see also pipes)

case pattern separator : Learning the Korn Shell, 5.3. case

I/O redirection (piping)

Learning the Korn Shell, 1.7.3. Pipelines
Learning the Korn Shell, 10.1. Installing the Korn Shell as the Standard Shell
Learning the Korn Shell, A.1. The Bourne Shell
Learning the UNIX Operating System, 5.1. Standard Input and Standard Output

logical operator

UNIX Power Tools, 45.28. Quick Reference: expr
UNIX Power Tools, 47.4.3.3. Bitwise and Logical Operators
sed & awk, 3.2. A Line-Up of Characters
sed & awk, 3.2.9. Alternative Operations

pipes

UNIX Power Tools, 1.3. Programs Are Designed to Work Together

UNIX Power Tools, 13.3. Send (only) Standard Error Down a Pipe

sed & awk, 10.5.1. Directing Output to a Pipe

noclobber variable and

Learning the Korn Shell, 3.3. Options
Learning the Korn Shell, 7.1. I/O Redirectors
Learning the Korn Shell, 10.2.3. Types of Global Customization
Learning the UNIX Operating System, 5.1.1.1. The > operator
UNIX Power Tools, 6.8. Shell Variables
UNIX Power Tools, 6.9. Special C Shell Variables
UNIX Power Tools, 13.6. Safe I/O Redirection with noclobber
UNIX Power Tools, 23.7. Safer File Deletion in Some Directories
UNIX in a Nutshell, 5.3.3. Predefined Shell Variables

precedence in C shell : UNIX Power Tools, 47.4.2. Expressions

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