About This Guide
This chapter includes:
The QNX Neutrino User's Guide is intended for all users of a QNX Neutrino system, from system administrators to end users. This guide tells you how to:
- Use the QNX Neutrino runtime environment, regardless of the kind of computer it's running on (embedded system or desktop). Think of this guide as the companion how-to doc for the Utilities Reference. Assuming there's a Neutrino system prompt or Photon login waiting for input, this guide is intended to help you learn how to interact with that prompt.
- Perform such traditional system administration topics as setting up user accounts, security, starting up a Neutrino machine, etc.
The Neutrino User's Guide is intended for programmers who develop Neutrino-based applications, as well as OEMs and other "resellers" of the OS, who may want to pass this guide on to their end users as a way to provide documentation for the OS component of their product.
The following table may help you find information quickly:
|To find out about:||Go to:|
|How Neutrino compares to other operating systems||Getting to Know the OS|
|Starting and ending a session, and turning off a Neutrino system||Logging In, Logging Out, and Shutting Down|
|Adding users to the system, managing passwords, etc.||Managing User Accounts|
|The basics of using the keyboard, command line, and shell (command interpreter)||Using the Command Line|
|Using Neutrino's graphical user interface||Using the Photon microGUI|
|Files, directories, and permissions||Working with Files|
|How to edit files||Using Editors|
|Configuring what your machine does when it boots||Controlling How Neutrino Starts|
|Customizing your shell, setting the time, etc.||Configuring Your Environment|
|Creating your own commands||Writing Shell Scripts|
|The filesystems that Neutrino supports||Working with Filesystems|
|Accessing other machines with Neutrino's native networking||Using Qnet for Transparent Distributed Processing|
|Setting up TCP/IP||TCP/IP Networking|
|Adding printers to your system and using them||Printing|
|Adding USB devices, terminals, video cards, and other hardware to your system||Connecting Hardware|
|Adding embedded HTTP services and dynamic content to embedded web applications||Setting Up an Embedded Web Server|
|Keeping track of changes to your software and other files||Using CVS|
|Backing up and restoring your files||Backing Up and Recovering Data|
|Making your Neutrino system more secure||Securing Your System|
|Analyzing and improving your machine's performance||Fine-Tuning Your System|
|How many processes, files, etc. your system can support||Understanding System Limits|
|How to get help||Technical Support|
|Samples of buildfiles, profiles, etc.||Examples|
|Terms used in QNX docs||Glossary|
Throughout this manual, we use certain typographical conventions to distinguish technical terms. In general, the conventions we use conform to those found in IEEE POSIX publications. The following table summarizes our conventions:
|Code examples||if( stream == NULL )|
|File and pathnames||/dev/null|
|Keyboard input||something you type|
|Programming data types||unsigned short|
|Programming literals||0xFF, "message string"|
We use an arrow (-->) in directions for accessing menu items, like this:
You'll find the Other... menu item under.
We use notes, cautions, and warnings to highlight important messages:
|Notes point out something important or useful.|
|Cautions tell you about commands or procedures that may have unwanted or undesirable side effects.|
|Warnings tell you about commands or procedures that could be dangerous to your files, your hardware, or even yourself.|
In our documentation, we use a forward slash (/) as a delimiter in all pathnames, including those pointing to Windows files.
We also generally follow POSIX/UNIX filesystem conventions.
At the top and bottom of our HTML docs, you'll see some or all of these buttons:
|Use this button:||To move:|
|To the previous part of the document.|
|"Up" in the document:
|To the keyword index.|
|To the next part of the document.|
To obtain technical support for any QNX product, visit the Support + Services area on our website (www.qnx.com). You'll find a wide range of support options, including community forums.
Copyright © 2004-2007, QNX Software Systems GmbH & Co. KG. All rights reserved.