How to Debug C Programs in Linux using gdb

If you are a C/C++ programmer or develop software using the Fortran and Modula-2 programming languages, you'll be glad to know there exists an excellent debugger - dubbed GDB - that lets you easily debug your code for bugs and other problems. In this article, we will discuss the basics of GDB, including some of the useful features/options it provides.

Source: Howtoforge Linux Howtos und Tutorials