!!GDB - GNU debugger gdb without any arguments automatically uses a.out C programs should be compiled with -g To make a program produce a core file for debugging with gdb after-the-fact do: {{{ulimit -c unlimited}}} {{{gdb myProgram core}}} | run [[args] | run the program | kill | stop program from running | quit | exit debugger | help | | ^C | stop / interrupt the program | continue | continue execution | list | show program code | next | go over next line | step | go into next line | print x | print value of x | backtrace | show stack | frame n | change to stack frame n | info frame | | info locals | | info args | !Breakpoints | break file.c:45 | set breakpoint at line 45 of file.c | break myfun | set breakpoint at beginning of myfun() | info breakpoints | list breakpoints | disable 2 | disable breakpoint 2 | clear XXXX | delete breakpoint