Typographic Conventions

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

Table 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

To delete a file, type rm filename.

AaBbCc123

Book titles, new terms, or terms to be emphasized

Read Chapter 6 in User's Guide.

These are called class options.

You must be root to do this.