Index

A note on the digital index

A link in an index entry is displayed as the section title in which that entry appears. Because some sections have multiple index markers, it is not unusual for an entry to have several links to the same section. Clicking on any link will take you directly to the place in the text in which the marker appears.

Symbols

! (bang) no match, Addressing
# (hash mark) root shell prompt, Conventions Used in This Book, Objective 1: Work on the Command Line
$ (dollar sign) command substitution, Command substitution
$ (dollar sign) user prompt, Conventions Used in This Book, Objective 1: Work on the Command Line, Regular Expression Syntax
$# variable, Configuration files
$? variable, Return values
* (asterisk) regex modifier, Regular Expression Syntax
+ (plus) regex modifier, Regular Expression Syntax
- single dash character, Entering commands at the command prompt, Entering command sequences
-- double dash character, Entering commands at the command prompt, Examples, Example 2
. (period) shortcut, Examples, Regular Expression Syntax
/etc directory, Boot-time Kernel Parameters
< redirection operator, Redirection
> redirection operator, Redirection
>> redirection operator, Redirection
? (question mark) regex modifier, Regular Expression Syntax
\ (backslash) escape, Regular Expression Syntax
\<\> match word boundaries, Regular Expression Syntax
^ caret, Regular Expression Syntax
| vertical line, Regular Expression Syntax
~ (tilde) shortcut, Examples, Invoking vi, Configuration files ...

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