Blame Manual/Introduction/convenctions.texi

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In this manual, certain words are represented in different fonts,
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typefaces, sizes, and weights. This highlighting is systematic;
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different words are represented in the same style to indicate their
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inclusion in a specific category. The types of words that are
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represented this way include the following:
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@table @command
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@item command
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Linux commands (and other operating system commands, when used) are
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represented this way. This style should indicate to you that you can
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type the word or phrase on the command line and press Enter to invoke
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a command. Sometimes a command contains words that would be displayed
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in a different style on their own (such as file names). In these
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cases, they are considered to be part of the command, so the entire
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phrase is displayed as a command. For example:
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Use the @command{centos-art identity --render='path/to/dir'} command
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to produce contents inside the @file{trunk/Identity} directory
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structure.
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@end table
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@table @file
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@item file name
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File names, directory names, paths, and RPM package names are
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represented this way. This style indicates that a particular file or
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directory exists with that name on your system. Examples:
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The @file{init.sh} file in @file{trunk/Scripts/Bash/Cli/} directory is
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the initialization script, written in Bash, used to automate most of
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tasks in the repository.
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The @command{centos-art} command uses the @file{ImageMagick} RPM
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package to convert images from PNG format to many different formats.
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@end table
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@table @key
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@item @key{key}
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A key on the keyboard is shown in this style. For example:
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To use @key{TAB} completion to list particular files in a directory,
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type @command{ls}, then a character, and finally the Tab key. Your
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terminal displays the list of files in the working directory that
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begin with that character.  
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@end table
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@table @key
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@item @key{key-combination}
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A combination of keystrokes is represented in this way. For example:
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The @key{Ctrl-Alt-Backspace} key combination exits your graphical
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session and returns you to the graphical login screen or the console.
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@end table
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@table @code
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@item @code{computer output}
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Text in this style indicates text displayed to a shell prompt such as
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error messages and responses to commands. For example:
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The @command{ls} command displays the contents of a directory. For example:
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@verbatim
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Config                           manual_renameEntry.sh
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manual_copyEntry.sh              manual_restoreCrossReferences.sh
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manual_deleteCrossReferences.sh  manual_searchIndex.sh
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@end verbatim
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The output returned in response to the command (in this case, the
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contents of the directory) is shown in this style.
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@end table
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Additionally, we use several different strategies to draw your
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attention to certain pieces of information. In order of urgency, these
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items are marked as a note, tip, important, caution, or warning. For
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example:
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@quotation
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@strong{Note} Remember that Linux is case sensitive. In other words, a
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rose is not a ROSE is not a rOsE. 
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@end quotation
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@quotation
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@strong{Tip} The directory @file{/usr/share/doc/} contains additional
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documentation for packages installed on your system. 
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@end quotation
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@quotation
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@strong{Important} If you modify the DHCP configuration file, the
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changes do not take effect until you restart the DHCP daemon. 
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@end quotation
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@quotation
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@strong{Caution} Do not perform routine tasks as root --- use a
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regular user account unless you need to use the root account for
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system administration tasks.
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@end quotation
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@quotation
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@strong{Warning} Be careful to remove only the necessary partitions.
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Removing other partitions could result in data loss or a corrupted
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system environment.
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@end quotation