Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Create a new file named cpi and type the following command."

A block of code is set as follows:

[226314.048026] usb 4-2: new full-speed USB device number 82 using uhci_hcd [226314.213273] usb 4-2: New USB device found, idVendor=0a5c, idProduct=2763 [226314.213280] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [226314.213284] usb 4-2: Product: BCM2708 Boot
[226314.213] usb 4-2: Manufacturer: Broadcom

Any command-line input or output is written as follows:

man <linux-command>

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Click on the Save button."