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Index: Symbols & Numbers

& (ampersand)

&& (logical AND) operator: 7.8. Relational and Boolean Operators

in replacement text: 5.3. Substitution

5.3.1. Replacement Metacharacters

* (asterisk)

** (exponentiation) operator: 7.6. Expressions

**= (assignment) operator: 7.6. Expressions

*= (assignment) operator: 7.6. Expressions

as metacharacter: 3.1. That's an Expression

3.2.5. Repeated Occurrences of a Character

multiplication operator: 7.6. Expressions

(backslash): 7.6. Expressions

(see also escape sequences, awk)

<, > escape sequences: 3.2.11. What's the Word? Part II

11.2.3.4. Extended regular expressions

`, ' escape sequences: 11.2.3.4. Extended regular expressions

character classes and: 3.2.4. Character Classes

as metacharacter: 3.2. A Line-Up of Characters

3.2.1. The Ubiquitous Backslash

in replacement text: 5.3. Substitution

5.3.1. Replacement Metacharacters

{} (braces)

in awk: 2.1. Awk, by Sed and Grep, out of Ed

2.4.1. Running awk

8.1. Conditional Statements

{} metacharacters: 3.2. A Line-Up of Characters

3.2.8. A Span of Characters

grouping sed commands in: 4.2.1. Grouping Commands

5.1. About the Syntax of sed Commands

[] (brackets) metacharacters: 3.2. A Line-Up of Characters

3.2.4. Character Classes

[::] metacharacters: 3.2.4.3. POSIX character class additions

[..] metacharacters: 3.2.4.3. POSIX character class additions

[==] metacharacters: 3.2.4.3. POSIX character class additions

^ (circumflex)

character classes and: 3.2. A Line-Up of Characters

3.2.4.2. Excluding a class of characters

^= (assignment) operator: 7.6. Expressions

exponentiation operator: 7.6. Expressions

as metacharacter: 3.2. A Line-Up of Characters

3.2.7. Positional Metacharacters

in multiline pattern space: 6.1.1. Append Next Line

: (colon) for labels: 6.4. Advanced Flow Control Commands

$ (dollar sign)

as end-of-line metacharacter: 3.2. A Line-Up of Characters

3.2.7. Positional Metacharacters

for last input line: 4.2. A Global Perspective on Addressing

in multiline pattern space: 6.1.1. Append Next Line

. (dot) metacharacter: 3.1. That's an Expression

3.2.2. A Wildcard

3.2.5. Repeated Occurrences of a Character

= (equal sign)

== (equal to) operator: 7.8. Relational and Boolean Operators

for printing line numbers: 5.9. Print Line Number

! (exclamation point): 4.2. A Global Perspective on Addressing

A.2.1. Pattern Addressing

branch command versus: 6.4.1. Branching

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

!= (not equal to) operator: 7.8. Relational and Boolean Operators

!~ (does not match) operator: 7.5.1. Referencing and Separating Fields

7.8. Relational and Boolean Operators

7.8. Relational and Boolean Operators

logical NOT operator: 7.8. Relational and Boolean Operators

> (greater than sign)

>= (greater than or equal to) operator: 7.8. Relational and Boolean Operators

for redirection: 2.3.2.1. Saving output

4.3. Testing and Saving Output

10.5. Directing Output to Files and Pipes

relational operator: 7.8. Relational and Boolean Operators

- (hyphen)

character classes and: 3.2.4.1. A range of characters

-= (assignment) operator: 7.6. Expressions

-- (decrement) operator: 7.6. Expressions

7.6. Expressions

subtraction operator: 7.6. Expressions

< (less than sign)

<= (less than or equal to) operator: 7.8. Relational and Boolean Operators

relational operator: 7.8. Relational and Boolean Operators

# for comments: 5.2. Comment

7.4.1. Describing Your Script

B.2.2.2. Comments

#n for suppressing output: 5.2. Comment

#!, invoking awk with: 10.9. Invoking awk Using the #! Syntax

B.1.1. Shell Wrapper for Invoking awk

( ) (parentheses): 2.2.1. Scripting

3.2. A Line-Up of Characters

3.2.10. Grouping Operations

with replacing text: 5.3.1. Replacement Metacharacters

% (percent sign)

for format specifications: 7.9. Formatted Printing

modulo operator: 7.6. Expressions

%= (assignment) operator: 7.6. Expressions

+ (plus)

addition operator: 7.6. Expressions

metacharacter: 7.4. Pattern Matching

+= (assignment) operator: 7.6. Expressions

++ (increment) operator: 7.6. Expressions

7.6. Expressions

? (question mark)

as metacharacter: 3.2. A Line-Up of Characters

3.2.5. Repeated Occurrences of a Character

?: (conditional) operator: 8.1.1. Conditional Operator

11.1.3. The C Conditional Expression

; (semicolon): 2.3.1. Specifying Simple Instructions

2.4.1. Running awk

B.2.2.1. Line termination

(single quotes): 2.2. Command-Line Syntax

2.3.1. Specifying Simple Instructions

/ (slash)

division operator: 7.6. Expressions

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

pattern addressing: 2.1. Awk, by Sed and Grep, out of Ed

A.2.1. Pattern Addressing

/= (assignment) operator: 7.6. Expressions

// as delimiter: 2.1. Awk, by Sed and Grep, out of Ed

5.3. Substitution

~ (match) operator: 7.5.1. Referencing and Separating Fields

7.8. Relational and Boolean Operators

7.8. Relational and Boolean Operators

| (vertical bar)

as metacharacter: 3.2. A Line-Up of Characters

3.2.9. Alternative Operations

piping output with: 10.5.1. Directing Output to a Pipe

|| (logical OR) operator: 7.8. Relational and Boolean Operators

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