materials are far less valuable today than they used to be because most of
these details are only a quick Google search away. Instead, we focus on
teaching you how to find information you need while giving a quality
overview worthy of intermediate and advanced users. Sometimes this book
offers tables of various options, commands, and keystrokes to help condense,
organize, and present information about a variety of subjects.
To help you better understand code listing examples and sample command
lines, several formatting techniques are used to show input and ownership.
For example, if a command or code listing example shows input that you as
the user would type, the input is formatted in boldface after the sample
command prompt, as follows:
matthew@seymour:~$ lsIf typed input is required, as in response to a prompt, the sample typed input
also is in boldface, like so:
Delete files? [Y/n] yAll statements, variables, and text that should appear on your display use the
same boldface formatting. In addition, command lines that require root or
super-user access are prefaced with the sudo command, as follows:
Click here to view code image
matthew@seymour:~$ sudo printtool &
Other formatting techniques include the use of italic for placeholders in
computer command syntax, as shown here:
Click here to view code image
matthew@seymour:~$ ls directoryname
Computer terms or concepts are also italicized upon first introduction in text.
The following elements provide you with useful tidbits of information that
relate to the discussion of the text:
NOTE
A note provides additional information you might find useful as you are
working. A note augments a discussion with ancillary details or may point
you to an article, a white paper, or another online reference for more
information about a specific topic.
TIP
Tips contain special insights or time-saving techniques, as well as
information about items of particular interest to you that you might not find