A number of style conventions are used throughout this guide. These conventions and examples of their use are shown as follows.
| Convention | Example | 
|---|---|
| Text that you enter in a command line or shell appears in Courier bold. Press the Enter key after each command. | |
| Variable names appear in Courier, enclosed in angle brackets. | <filename> | 
| Feedback from the command line or shell appears in Courier. | limit coredumpsize | 
| Directory names, filenames, URLs, and command line utilities appear in italics. | /usr/discreet |