Useful commands in gdb

Below is a useful subset of gdb commands, listed roughly in the order they might be needed. The first column gives the command, with optional characters enclosed in [square brackets]. For example, the run command can be abbreviated r. The second column gives a short description of the command. Type help <command> in gdb to obtain more information on each command.

r[un]	Run to next breakpoint or to end
s[tep]	Single-step, descending into functions
n[ext]	Single-step without descending into functions
fin[ish]	Finish current function, loop, etc. (useful!)
c[ontinue]	Continue to next breakpoint or end
up	Go up one context level on stack (to caller)
do[wn]	Go down one level (only possible after up)
p[rint] name	Print value of variable called name
p/x name	Print value of name in hex format
p name@n	print n values starting at name
p charstab	List all variables starting with chars
b[reak] name	Set a breakpoint at function name
b class::name	Set a breakpoint at name