The following table describes the typographic changes used in this book.
Typeface or Symbol
The names of commands, files, and directories; on-screen computer output
Edit your .login file.
Use ls -a to list all files.
machine_name% You have mail .
What you type, contrasted with on-screen computer output
machine_name% su Password:
Command-line placeholder: replace with a real name or value
To delete a file, type rm filename .
Book titles, new words or terms, or words to be emphasized
Read Chapter 6 in User's Guide . These are called class options.
You must be root to do this.