Using gdb-peda

• aslr on/off - turn ASLR on/off

• find 0xdeadbeef - Find a value(here 0xdeadbeef) in the process memory

• condition 3 $eax==0 - only break at breakpoint 3 when eax is 0

On the fly-patching

b *0xdeadbeef
commands
j *0xdeadbff
end

• commands - commands to be executed at last set breakpoint. end with end

• ​