Python定时备份mysql

备份mysql数据库的python脚本，backup.py：

import os
import urllib
import json
import socket
import thread 
import urlparse
import time  
import shutil


sourcePath = "/Data/mysql/data/db_name"


def delete_file_folder(src):  
    '''delete files and folders''' 
    if os.path.isfile(src):  
        try:  
            os.remove(src)  
        except:  
            pass
    elif os.path.isdir(src):  
        for item in os.listdir(src):  
            itemsrc=os.path.join(src,item)  
            delete_file_folder(itemsrc)  
        try:  
            os.rmdir(src)  
        except:  
            pass




def copy_file_folder(src):  
    '''copy files''' 
    
    for item in os.listdir(sourcePath):  
        itemsrc=os.path.join(sourcePath,item)  
        if os.path.isfile(itemsrc):
           shutil.copy(itemsrc, src)


def backup():
    '''backup mysql'''
    now = int(time.time())
    yesterday = now - 3600*24
    newFilename = time.strftime("%Y-%m-%d", time.localtime(yesterday))
    path = "/Data/backup/"
    
    isExists = os.path.exists(path + newFilename)
    if not isExists:
        try:
            os.mkdir(path + newFilename)
            copy_file_folder(path + newFilename)
        except:
            pass         
    
    
    old = yesterday - 2*3600*24
    oldFilename = time.strftime("%Y-%m-%d", time.localtime(old))
    delete_file_folder(path + oldFilename)


if __name__ == "__main__":
    while 1:
        htime = int(time.strftime('%H',time.localtime(time.time())))
        if htime == 3:
            backup()


        time.sleep(60)

linux环境执行backup.py脚本，切换到同一目录：

nohup python backup.py  &          //启动python脚本，nohup命令进程持久化，该命令可以在你退出帐户/关闭终端之后继续运行相应的进程

ps aux | grep python //查看python进程