Linux Programming Unleashed Introduction Linux has always provided a rich programming environment, and it has only grown richer. Two new compilers, egcs and pgcs, joined the GNU project’s gcc, the original Linux compiler. In fact, as this book went to press, the Free Software Foundation, custodians of the GNU project, announced that gcc would be maintained by the creators and maintainers of egcs. A huge variety of editors stand alongside the spartan and much-maligned vi and emacs’ marvelous complexity. Driven largely by the Linux kernel, GNU’s C library has evolved so dramatically that a new version, glibc (also known as libc6) has emerged as the standard C library. Linux hackers have honed the GNU project’s always serviceable development suite into powerful tools. New widget sets have taken their place beside the old UNIX standbys. Lesstif is a free, source-compatible implementation of Motif 1.2; KDE, the K Desktop Environment based on the Qt class libraries from TrollTech, answers the desktop challenge posed by the X Consortium’s CDE (Common Desktop Environment). What This Book Will Do for You In this book, we propose to show you how to program in, on, and for Linux. We’ll focus almost exclusively on the C language because C is still Linux’s lingua franca. After introducing you to some essential development tools, we dive right in to system programming, followed by a section on interprocess communication and network programming. After a section devoted to programming Linux’s user interface with both text-based and graphical tools (the X Window system), a section on specialized topics, including shell programming, security considerations, and using the GNU project’s gdb debugger, rounds out the technical discussion. We close the book with three chapters on a topic normally disregarded in programming books: delivering your application to users. These final chapters show you how to use package management tools such as RPM, how to create useful documentation, and discuss licensing issues and options. If we’ve done our job correctly, you should be well prepared to participate in the great sociological and technological phenomenon called “Linux.”

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