Preface
contents in uppercase or lowercase letters.
Options
In syntax examples, braces indicate that you are required to choose one of the enclosed options. For example, the following notation means that you must include a 0 or a 1 in the command:
{0, 1}
Square Brackets
In syntax examples, boldface type enclosed in square brackets indicates command options that you can type as needed. For example:
FTP [
System Response
Monospace type shows
TNVT220>
UNIX Commands
UNIX® commands are shown in boldface letters. For example, vi. Because UNIX is
UNIX Filenames, Directory Names, and Pathnames
UNIX filenames, directory names, and pathnames are shown in italics. For example, /etc/hosts.
Because UNIX is
Variables
Italic type indicates
For example, in the command
FTP
xi