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Index: B

b command (sed) : 6.4.1. Branching

\B escape sequence : 11.2.3.4. Extended regular expressions

backreferences : (see numbered replacement strings)

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

bang (!) : (see exclamation point)

basic regular expressions (BREs) : 3.2.4.3. POSIX character class additions

BEGIN pattern : 7.2. Hello, World

command-line parameters and : 7.10. Passing Parameters Into a Script

BEGIN procedure : 11.1.6. Control Flow

BEGINFILE procedure (tawk) : 11.3.2.1. Tawk language extensions

beginning

of line : (see ^ (circumflex))
of word : (see \<, \> escape sequences)

Bell Labs awk : 11.2.2. Bell Labs awk

BITFTP : BITFTP

blocks of text : 6.3.3. Building Blocks of Text

Boolean operators, awk : 7.8. Relational and Boolean Operators

variables as Boolean patterns : 11.1.4. Variables as Boolean Patterns

braces {} : A.2.1. Pattern Addressing

\{\} 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

bracket expressions : 3.2.4. Character Classes

brackets []

[::] 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

as metacharacters

3.2. A Line-Up of Characters
3.2.4. Character Classes

branch command : (see b command (sed))

branching : 6.4.1. Branching

break statement : 8.3. Other Statements That Affect Flow Control

breaking lines : 11.2.3.3. Line continuation

BREs (basic regular expressions) : 3.2.4.3. POSIX character class additions

buffers, flushing : 11.2.1.3. Flushing buffered output

built-in functions

awk : 11.1.10. Functions
gawk : 11.2.3.9. Additional functions
tawk : 11.3.2.2. Additional built-in tawk functions

built-in variables

7.7. System Variables
11.1.11. Built-In Variables

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