1 #!/usr/bin/env python
2 #-*- coding: utf-8 -*-
3 """
4 @Project:Py
5 @author:
6 @Email:
7 @Software: PyCharm
8 @file: test_rm.py
9 @time: 2018/1/17 0017 下午 14:14
10 """
11
12 import os
13 import time
14
15 # 备份的指定目录
16 source = ['/usr/local/src/test1/']
17 # 备份文件存放路径
18 target_dir='/home/backup/'
19 # 备份时长
20 data = 3
21 # 备份日志
22 filebak_log = "/var/log/filebak.log"
23 # 删除备份文件日志
24 filerm_log = "/var/log/filerm.log"
25
26 def file_bak():
27 """备份指定目录下的文件"""
28 target=target_dir+time.strftime('%Y%m%d%H%M%S')+'.tar.gz'
29 cmd='tar -zcPf %s %s '%(target,' '.join(source))
30 if os.system(cmd)==0 :
31 with open(filebak_log,'a') as filebak:
32 filebak.write('successfull backup to %s \n' % target)
33
34 # crontab
35 # 0 4 * * * /usr/bin/python /root/demooil_bak.py >> /var/log/demooil_bak.py.log 2>&1
36
37 def file_rm():
38 """删除备份目录下超过一定时长的文件"""
39 f = list(os.listdir(target_dir))
40 now_time = time.strftime('%Y%m%d%H%M%S')[0:8]
41 for i in f:
42 if i[15:] == 'tar.gz':
43 exit_time = i[0:8]
44 update_time = int(exit_time) + data
45 if update_time < int(now_time):
46 os.remove(target_dir+i)
47 with open(filerm_log,'a') as file_log:
48 file_log.write("%s删除备份文件%s \n" % (now_time,i))
49
50 if __name__ == '__main__':
51 file_bak()
52 file_rm()
