Document Conventions; Typographic Conventions - Red Hat ENTERPRISE LINUX 4 System Administration Manual

Introduction
An Updated OProfile Chapter
The OProfile chapter has been revised and reorganized to include updated information in regards
to the 2.6 kernel. Special thanks to Will Cohen for his hard work in helping to complete this
chapter.
An Updated X Window System Chapter
The X Window System chapter has been revised to include information on the X11R6.8 release
developed by the X.Org team.
Before reading this guide, you should be familiar with the contents of the Installation Guide concerning
installation issues, the Introduction to System Administration for basic administration concepts, the
System Administrators Guide for general customization instructions, and the Security Guide for
security related instructions. This guide contains information about topics for advanced users.

2. Document Conventions

This manual uses several conventions to highlight certain words and phrases and draw attention to
specific pieces of information.
In PDF and paper editions, this manual uses typefaces drawn from the
Liberation Fonts set is also used in HTML editions if the set is installed on your system. If not,
alternative but equivalent typefaces are displayed. Note: Red Hat Enterprise Linux 5 and later includes
the Liberation Fonts set by default.

2.1. Typographic Conventions

Four typographic conventions are used to call attention to specific words and phrases. These
conventions, and the circumstances they apply to, are as follows.
Mono-spaced Bold
Used to highlight system input, including shell commands, file names and paths. Also used to highlight
keycaps and key combinations. For example:
To see the contents of the file my_next_bestselling_novel in your current
working directory, enter the cat my_next_bestselling_novel command at the
shell prompt and press Enter to execute the command.
The above includes a file name, a shell command and a keycap, all presented in mono-spaced bold
and all distinguishable thanks to context.
Key combinations can be distinguished from keycaps by the hyphen connecting each part of a key
combination. For example:
Press Enter to execute the command.
Press Ctrl+Alt+F1 to switch to the first virtual terminal. Press Ctrl+Alt+F7 to
return to your X-Windows session.
The first paragraph highlights the particular keycap to press. The second highlights two key
combinations (each a set of three keycaps with each set pressed simultaneously).
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https://fedorahosted.org/liberation-fonts/
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Liberation Fonts
set. The