from ftplib import FTP #加載ftp模塊
ftp=FTP() #設(shè)置變量
ftp.set_debuglevel(2) #打開調(diào)試級別2，顯示詳細信息
ftp.connect("IP","port") #連接的ftp sever和端口
ftp.login("user","password")#連接的用戶名，密碼
print ftp.getwelcome() #打印出歡迎信息
ftp.cmd("xxx/xxx") #更改遠程目錄
bufsize=1024 #設(shè)置的緩沖區(qū)大小
filename="filename.txt" #需要下載的文件
file_handle=open(filename,"wb").write #以寫模式在本地打開文件
ftp.retrbinaly("RETR filename.txt",file_handle,bufsize) #接收服務(wù)器上文件并寫入本地文件
ftp.set_debuglevel(0) #關(guān)閉調(diào)試模式
ftp.quit #退出ftp

ftp.cwd(pathname) #設(shè)置FTP當(dāng)前操作的路徑
ftp.dir() #顯示目錄下文件信息
ftp.nlst() #獲取目錄下的文件
ftp.mkd(pathname) #新建遠程目錄
ftp.pwd() #返回當(dāng)前所在位置
ftp.rmd(dirname) #刪除遠程目錄
ftp.delete(filename) #刪除遠程文件
ftp.rename(fromname, toname)#將fromname修改名稱為toname。
ftp.storbinaly("STOR filename.txt",file_handel,bufsize) #上傳目標(biāo)文件
ftp.retrbinary("RETR filename.txt",file_handel,bufsize)#下載FTP文件

import socket
from ftplib import FTP
ftp_server='xx.xx.xx.xx'
ftp_user='xxxxx'
ftp_password='xxxxx'
ftp_backup_dir='backup'
 
newday = date.today()  #獲取今天的日期
oldday = date.today()-timedelta(5)  #獲得5天前的日期
newfile = '/home/backup/' + 'backup_data_' + str(newday.year) + '.' + str(newday.month) + '.' + str(newday.day) + '.zip'  #本次備份文件名(絕對路徑)
oldfile = '/home/backup/' + 'backup_data_' + str(oldday.year) + '.' + str(oldday.month) + '.' + str(oldday.day) + '.zip'  #5天前備份的文件名(絕對路徑)
 
def upload():
  socket.setdefaulttimeout(60)  #超時FTP時間設(shè)置為60秒
  ftp = FTP(ftp_server)
  print("login ftp...")
  try:
    ftp.login(ftp_user, ftp_password)
    print(ftp.getwelcome())  #獲得歡迎信息
 
    try:
      if ftp_backup_dir in ftp.nlst():
        print("found backup folder in ftp server, upload processing.")
      else:
        print("don't found backup folder in ftp server, try to build it.")
        ftp.mkd(ftp_backup_dir)
    except:
      print("the folder" + ftp_backup_dir + "doesn't exits and can't be create!")
      sys.exit()
  except:
    print("ftp login failed.exit.")
    sys.exit()
  ftp.cwd(ftp_backup_dir)  #設(shè)置FTP路徑
 
  print("upload data...")
  try:
    ftp.storbinary('STOR ' + os.path.basename(newfile), open(newfile,'rb'), 1024)  #上傳備份文件
  except:
    print("upload failed. check your permission.")
  
  print("delte old file...")
  try:
    ftp.delete(os.path.basename(oldfile))  #刪除5天前的備份文件
  except:
    print("the old file in ftp doesn't exists, jumped.")
 
  print("ftp upload successful.exit...")
  ftp.quit()
 
if __name__== '__main__':
  upload()