What Typographic Conventions Mean
The following table describes the typographic conventions used in this book.
Table P-1 Typographic Conventions
| Typeface or Symbol | Meaning | Example | 
|---|
| AaBbCc123 | 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. | 
| AaBbCc123 | What you type, contrasted with
on screen 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 words or terms, or
words to be emphasized | Read Chapter 6 in User's Guide. These are called class options. Do
not save changes yet. |