Pwntools

A quick look into pwn library :

from pwn import *
context.bits=32

# Helpers for many common tasks 
p.sendline(), p.recvline
p.recvuntil(':'), pack()

# 1. To ssh into a machine 

s=ssh(host='challenge02.root-me.org',user='app-systeme-ch15',password='app-systeme-ch15',port=2222)
p=s.process('./ch15')


# 2. To connect remotely : 


r=remote('127.0.0.1',8888)

# 3. passing as an argument :


p=process(['level2',payload])

# To specify no of bytes to unpack 


context.bits=len(a)*8

# 4. To generate Your own shellcode 

Shellcode=asm(shellcraft.i386.linux.cat("flag"))

# 5 TO use libc for Ret2libc attack 

libc = ELF(libcfilename);
libc.address= leak- libc.symbols['atoi'];
system = libc.symbols['system']
binsh =  libc.search("/bin/sh").next()

# 6. Debuging using gdb

p = gdb.debug('./pinkiegift')
raw_input()