linux服务器备份（python）

#!/usr/bin/python
# Filename: serverbak-ftp.py
import   os
import   time
import   sys
import   datetime
from stat import *
from ftplib import FTP
import smtplib
import datetime
from email.mime.text import MIMEText
t= datetime.datetime.now()

ctime = "%s-%s-%s:"%(t.year,t.month,t.day)

//收件邮箱

mailto_list=["[e-mail]"]

//发送邮箱

mail_host="smtp.sina.com"
mail_user="xxx"
mail_pass="xxx"
mail_postfix="sina.com"



//时间处理 获取删除3天前的备份，最多保留3天
now = datetime.date.today()
deltime = now - datetime.timedelta(days=3)
dtime=deltime.isoformat()
deldir = 'cjbd_backup__'+dtime+'.zip'



//邮箱函数
def send_mail(content):
    me="hello"+"<"+mail_user+"@"+mail_postfix+">"
    msg = MIMEText(content,_subtype='plain',_charset='gb2312')
    msg['Subject'] = "xxx Backup Result"
    msg['From'] = me
    msg['To'] = ";".join(mailto_list)
    try:
        server = smtplib.SMTP()
        server.connect(mail_host)
        server.login(mail_user,mail_pass)
        server.sendmail(me, mailto_list, msg.as_string())
        server.close()
        return True
    except Exception, e:
        print str(e)
        return False


tobackup = "/mnt/cjbd/"
backfilename = tobackup +'cjbd_backup__'+ time.strftime('%Y-%m-%d')+'.zip'
filepath  = '/var/www/2012'
## backup gzip command
zip_command = "zip -r  %s  %s" %(backfilename,filepath)


if os.system(zip_command)==0:
                print 'Zip file to',backfilename
else:
                print 'Zip file fail!'
                f=send_mail(ctime+'Zip file fial')
                exit
## upload ftp server
ftp=FTP()


ftp.set_debuglevel(2)
ftp.connect('192.168.0.1','21')
ftp.login('xxx','xxx')

//ftp上传文件，以及远程删除3天前的备份程序，无论ftp上传是否成功，本地压缩文件都要删除。文件ftp上传后邮箱通知结果。
#ftp.cwd()
bufsize = 1024
file_handler = open(backfilename,'rb')
ftp.set_pasv(0)
rev=ftp.storbinary('STOR %s' % os.path.basename(backfilename),file_handler,bufsize)
ftp.set_debuglevel(0)
file_handler.close()
if rev == '226 File received ok' :
        print 'ftp rec ok'
        if os.system("rm "+backfilename) == 0 :
                print 'delete ok'
                delinfo=ftp.delete(deldir)
                if '250' in delinfo:
                        print 'delete cwd dir success!'
                        f=send_mail(ctime+'Backup file Success!!!')
                else:
                        f=send_mail(ctime+'Delete cwd dir fail!')
        else:
                print 'delete fail'
                f=send_mail(ctime+'ftp delete fial')
else :
        print 'ftp rec fail'
        f=send_mail(ctime+"ftp recived fail!")
ftp.quit()

~            

#注意：备份服务器需要开启ftp server 本程序采取主动模式，防火墙请打开20 及21端口