The GNU Project Debugger(GDB) GDB,the GNU Project debugger,allows you to see what is going on "inside"another program while it executes-or what another program was doing at the moment it crashed. Start your program,specifying anything that might affect its behavior. Make your program stop on specified conditions. Examine what has happened when your program has stopped. Change things in your program,so you can experiment with correcting the effects of one bug and go on to learn about another.The GNU Project Debugger (GDB) GDB, the GNU Project debugger, allows you to see what is going on “inside” another program while it executes – or what another program was doing at the moment it crashed. Start your program, specifying anything that might affect its behavior. Make your program stop on specified conditions. Examine what has happened when your program has stopped. Change things in your program, so you can experiment with correcting the effects of one bug and go on to learn about another