Conventions Used in This Book
The following is a list of the typographical conventions used in this
book:Italic
Used to indicate new terms, URLs, filenames, file extensions, and
directories, and to highlight comments in examples. For example, a
path in the filesystem will appear as
/usr/local.
Constant width
Used to show code examples, the contents of files, commands, or the
output from commands.
Constant width bold
Used in examples and tables to show commands or other text that
should be typed literally.
Constant width italic
Used in examples and tables to show text that should be replaced with
user-supplied values.
[RETURN]
A carriage return ([RETURN]) at the end of a line of code
is used to denote an unnatural line break; that is, you should not
enter these as two lines of code, but as one continuous line.
Multiple lines are used in these cases due to page width constraints.
Menu symbols
When looking at the menus for any application, you will see some
symbols associated with keyboard shortcuts for a particular command.
For example, to open a file, you would go to the File menu and select
Open . . . (File Open . . . ). For Macintosh users, many
menus have keyboard equivalents using the [COMMAND] symbol. The
[COMMAND] symbol corresponds to the [COMMAND] key (also known
as the "Command" key), located to
the left and right of the spacebar on any Macintosh keyboard.
You should pay special attention to notes set apart from the text
with the following icons. |
This is a tip, suggestion, or general note. It contains useful
supplementary information about the topic at hand. |
|
|
This is a warning or note of caution. |
|
The thermometer icons, found next to each hack, indicate the relative
complexity of the hack. |
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