4. Document Conventions

4. Document Conventions

Certain words in this manual are represented in different fonts, styles, and weights. This highlighting indicates that the word is part of a specific category. The categories include the following:

Courier font

Courier font represents commands, file names and paths, and prompts .

When shown as below, it indicates computer output:

Desktop       about.html       logs      paulwesterberg.png
Mail          backupfiles      mail      reports

bold Courier font

Bold Courier font represents text that you are to type, such as: service jonas start

If you have to run a command as root, the root prompt (#) precedes the command:

# gconftool-2

italic Courier font

Italic Courier font represents a variable, such as an installation directory: install_dir/bin/

bold font

Bold font represents application programs and text found on a graphical interface.

When shown like this: OK , it indicates a button on a graphical application interface.

Additionally, the manual uses different strategies to draw your attention to pieces of information. In order of how critical the information is to you, these items are marked as follows:


A note is typically information that you need to understand the behavior of the system.


A tip is typically an alternative way of performing a task.


Important information is necessary, but possibly unexpected, such as a configuration change that will not persist after a reboot.


A caution indicates an act that would violate your support agreement, such as recompiling the kernel.


A warning indicates potential data loss, as may happen when tuning hardware for maximum performance.

Note: This documentation is provided {and copyrighted} by Red Hat®, Inc. and is released via the Open Publication License. The copyright holder has added the further requirement that Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder. The CentOS project redistributes these original works (in their unmodified form) as a reference for CentOS-4 because CentOS-4 is built from publicly available, open source SRPMS. The documentation is unmodified to be compliant with upstream distribution policy. Neither CentOS-4 nor the CentOS Project are in any way affiliated with or sponsored by Red Hat®, Inc.