In this manual, certain words are represented in different fonts, typefaces, sizes, and weights. This highlighting is systematic; different words are represented in the same style to indicate their inclusion in a specific category. The types of words that are represented this way include the following: command Linux commands (and other operating system commands, when used) are represented this way. This style should indicate to you that you can type the word or phrase on the command line and press Enter to invoke a command. Sometimes a command contains words that would be displayed in a different style on their own (such as file names). In these cases, they are considered to be part of the command, so the entire phrase is displayed as a command. Example: Use the centos-art render trunk/Manuals/Repository/Docbook --filter="repository" command to produce the CentOS Artwork Repository User's Guide. file name File names, directory names, paths, and RPM package names are represented this way. This style indicates that a particular file or directory exists with that name on your system. Example: The init.sh file in trunk/Scripts/Bash/Cli/ directory is the initialization script, written in Bash, used to automate most of tasks in the repository. The centos-art command uses the ImageMagick RPM package to convert images from PNG format to other formats. key A key on the keyboard is shown in this style. Example: To use Tab completion to list particular files in a directory, type ls, then a character, and finally the Tab key. Your terminal displays the list of files in the working directory that begin with that character. keycombination A combination of keystrokes is represented in this way. Example: The CtrlAltBackspace key combination exits your graphical session and returns you to the graphical login screen or the console. computer output Text in this style indicates text displayed to a shell prompt such as error messages and responses to commands. For example, the ls command displays the contents of a directory using this style: render_doTranslation.sh render_getDirTemplate.sh render_doBaseActions.sh render_getConfigOption.sh render_getOptions.sh render_doThemeActions.sh render_getDirOutput.sh render.sh The output returned in response to the command (in this case, the contents of the directory) is shown in this style. prompt A prompt, which is a computer's way of signifying that it is ready for you to input something, is shown in this style. Examples: $ # [centos@projects centos]$ projects login: user input Text that the user types, either on the command line or into a text box on a GUI screen, is displayed in this style. In the following example, text is displayed in this style: To boot your system into the text based installation program, you must type in the text command at the boot: prompt. replaceable Text used in examples that is meant to be replaced with data provided by the user is displayed in this style. In the following example, version-number is displayed in this style: The directory for the kernel source is /usr/src/kernels/version-number/, where version-number is the version and type of kernel installed on this system. Additionally, we use several different strategies to draw your attention to certain pieces of information. In order of urgency, these items are marked as a note, tip, important, caution, or warning. For example: Remember that Linux is case sensitive. In other words, a rose is not a ROSE is not a rOsE. The directory /usr/share/doc/ contains additional documentation for packages installed on your system. If you modify the DHCP configuration file, the changes do not take effect until you restart the DHCP daemon. Do not perform routine tasks as root — use a regular user account unless you need to use the root account for system administration tasks. Be careful to remove only the necessary partitions. Removing other partitions could result in data loss or a corrupted system environment.