GDB

Question 1

gdb> list

Answer 1

show current location and surrounding lines

Question 2

gdb> info

Answer 2

show info on various attributes:
local - local variables
args - arguments to current stack frame

Question 3

gdb> print

Answer 3

print variables etc… ex:
print pHead->val // val
print *pHead // address

Question 4

gdb> bt

Answer 4

backtrace

Question 5

gdb> up/down

Answer 5

move up/down N stackframes to analyze state

Question 6

gdb> break or

Answer 6

set a break point on a line or start of a function

Question 7

gdb> help

Answer 7

help and then a word to get help with that command

Question 8

gdb> delete

Answer 8

delete all break points (or specify one as arg)

Question 9

gdb> n

Answer 9

step to next line (skip over, not into)

Question 10

gdb> s

Answer 10

step to next command (into, not over)