= gdb

r                run until breakpoint/end
b <func>         breakpoint at function
b <N>            breakpoint at LOC
b <file.c>:<N>   breakpoint at LOC of file
d <N>            delete breakpoint N
info break       information about breakpoints
c                continue until next breakpoint
f                continue until end of function
s                step LOC
s <N>            step N LOCs
p <var>          print variable
set <var>=<val>  set variable to value
bt               print backtrace
q                quit
info threads     information about threads
t <N>            load the context/backtrace of thread N