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Index: Symbols and 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)
\{\} metacharacters
3.2. A Line-Up of Characters
3.2.8. A Span of Characters
in awk
2.1. Awk, by Sed and Grep, out of Ed
2.4.1. Running awk
8.1. Conditional Statements
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)
^= (assignment) operator : 7.6. Expressions
character classes and
3.2. A Line-Up of Characters
3.2.4.2. Excluding a class of characters
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
$0, $1, $2, ...
2.4.1. Running awk
7.5.1. Referencing and Separating Fields
. (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
!= (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
branch command versus : 6.4.1. Branching
csh and : 1.4. Four Hurdles to Mastering sed and awk
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)
-= (assignment) operator : 7.6. Expressions
-- (decrement) operator : 7.6. Expressions
character classes and : 3.2.4.1. A range of characters
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)
%= (assignment) operator : 7.6. Expressions
for format specifications : 7.9. Formatted Printing
modulo operator : 7.6. Expressions
+ (plus)
+= (assignment) operator : 7.6. Expressions
++ (increment) operator : 7.6. Expressions
addition operator : 7.6. Expressions
metacharacter : 7.4. Pattern Matching
as metacharacter
3.2. A Line-Up of Characters
3.2.5. Repeated Occurrences of a Character
? (question mark)
?: (conditional) operator
8.1.1. Conditional Operator
11.1.3. The C Conditional Expression
as metacharacter
3.2. A Line-Up of Characters
3.2.5. Repeated Occurrences of a Character
; (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)
/= (assignment) operator : 7.6. Expressions
// as delimiter
2.1. Awk, by Sed and Grep, out of Ed
5.3. Substitution
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
~ (match) operator
7.5.1. Referencing and Separating Fields
7.8. Relational and Boolean Operators
| (vertical bar)
|| (logical OR) operator : 7.8. Relational and Boolean Operators
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


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