GDB Getting started with GDB What is GDB?

Example

GDB, short for GNU Debugger, is the most popular debugger for UNIX systems to debug C and C++ programs. GNU Debugger, which is also called gdb, is the most popular debugger for UNIX systems to debug C and C++ programs.

GNU Debugger helps you in getting information about the following:

• If a core dump happened, then what statement or expression did the program crash on?

• If an error occurs while executing a function, what line of the
  program contains the call to that function, and what are the
  parameters?

• What are the values of program variables at a particular point during execution of the program?

• What is the result of a particular expression in a program?