GDB

Cheatsheet

Command	Shortcut	Purpose
list main	li main	Shows source code of main function (only if compiled with gcc -g)
break main break 10	br main br 10	Sets a break point at the start of the main function, sets break point at line 10 of provided source code (if compiled with source)
run run haha	r r haha	Runs the program from the beginning. Adds haha as a cmd line arg.
continue	c	Continues the program execution after hitting a breakpoint
next instruction	n i	Go to the next instruction and stop execution
inspect registers	i r i r esp ebp eip	Inspect registers at the current point in execution. Can specify individual or multiple registers as well to reduce output on screen.
examine/5instructions $eip	x/5i $eip	Examine the next 5 instructions of the EIP register.
x/8xb $eip		Examine the next 8 hex bytes of the EIP register
x/6cb 0x8048484 x/s 0x8048484	inspect chars and strings	Inspect the next six bytes as char and print their values Inspect the string stored at the memory location
x/o x/x x/u x/t		Octal hex Unsigned base-10 int binary