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4
Typographic Conventions
This manual uses the following typographic conventions:
Boldface Words defined for the first time appear in boldface.
Computer Computer font indicates literal items displayed by
the computer. For example: file not found
User input Bold, computer text indicates literal items that you
type. For example, to change to your account’s home
directory, enter:
cd
Italics Manual titles, variables in commands, and emphasized
words appear in italics. For example, you would
substitute an actual directory name for
directory_name
in this command:
cd
directory_name
[ ] and | Brackets [] enclose optional items in command syntax.
The vertical bar | separates syntax items in a list of
choices. For example, you can enter any one of these
three items in this syntax:
ls [-a | -i | -x]
Enter Text in this bold, sans serif font denotes keyboard keys
and on-screen menus. A notation like Ctrl-Q indicates
that you should hold the Ctrl key down, then press Q.