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Typographic Conventions

The following table describes the typographic changes that are used in this book.

Table P-1 Typographic Conventions

Typeface or Symbol

Meaning

Example

AaBbCc123

The names of commands, files, and directories, and onscreen computer output 

Edit your .login file.

Use ls -a to list all files.

machine_name% you have mail.

AaBbCc123

What you type, contrasted with onscreen computer output 

machine_name% su

Password:

AaBbCc123

Command-line placeholder: replace with a real name or value 

The command to remove a file is rm filename.

AaBbCc123

Book titles, new terms, and terms to be emphasized

Read Chapter 6 in the User's Guide.

These are called class options.

Do not save the file.

(Emphasis sometimes appears in bold online.)

Shell Prompts in Command Examples

The following table shows the default system prompt and superuser prompt for the C shell, Bourne shell, and Korn shell.

Table P-2 Shell Prompts

Shell

Prompt

C shell prompt machine_name%
C shell superuser prompt machine_name#
Bourne shell and Korn shell prompt $
Bourne shell and Korn shell superuser prompt #
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