Conventions

The following typographic conventions are used in this tutorial:

• Italic
• is used for filenames and command names. It is also used for electronic mail addresses and URLs.
• Constant Width
• is used for code examples, as well as names of elements of code.
• Bold
• is used in code sections to draw attention to key parts of the program. It also marks user input in examples.
• Courier Italic
• is used in code sections to draw attention to code generated automatically by tools.