Symbol Conventions
The following table explains symbols that might be used in this book.
Table P-4 Symbol Conventions
Symbol |
Description |
Example |
Meaning |
|---|---|---|---|
[ ] |
Contains optional arguments and command options. |
ls [-l] |
The -l option is not required. |
{ | } |
Contains a set of choices for a required command option. |
-d {y|n} |
The -d option requires that you use either the y argument or the n argument. |
${ } |
Indicates a variable reference. |
${com.sun.javaRoot} |
References the value of the com.sun.javaRoot variable. |
- |
Joins simultaneous multiple keystrokes. |
Control-A |
Press the Control key while you press the A key. |
+ |
Joins consecutive multiple keystrokes. |
Ctrl+A+N |
Press the Control key, release it, and then press the subsequent keys. |
→ |
Indicates menu item selection in a graphical user interface. |
File → New → Templates |
From the File menu, choose New. From the New submenu, choose Templates. |