The book is framed as a case study for building a custom database program in Linux for a video rental store. After a tour of the requirements and a brief look at project management for creating this software, the various Linux packages that are needed to implement this system are described, along with sample code, most of which is written in C. Some packages, such as the CVS version-control package, come with most distributions of Linux; others will require downloading additional software over the Internet. In every case, you're provided with the actual command-line arguments that are needed to install, configure, and run each package.
Besides a great exploration of CVS for version control, this title offers excellent coverage of the free PostgreSQL and MySQL databases, which are two very popular choices for Linux databases. The book also does a good job of explaining UI design under both the GTK+/GNOME and KDE (two popular Linux desktops), and how to extend the reach of the sample database application by using Remote Procedure Calls (RPCs) and CORBA. Of course, the finished application doesn't use every Linux API that's covered here, but the book does cast a wide net, and introduces features and tools that are available.
Two prominent chapters take you on a tour of the essentials of other programming languages. There's PHP for Web development and an appealing, enthusiastic introduction to Python (which probably will turn you into a Python convert). Later chapters provide practical tips for testing and debugging applications, including how to profile your code. The book closes with a useful guide to creating Red Hat Package Manager (RPM) packages for deploying applications, as well as an overview of your options for internationalization.
By covering so many APIs, languages, and tools effectively, Professional Linux Programming gives experienced C/C++ programmers all that they need to get started with Linux development. With its remarkably clear presentation style and abundance of practical tips, the book is an admirably useful blueprint for building custom software. --Richard Dragan
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