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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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