python os与sys模块范例与方法说明

#!/usr/bin/python 
# Filename: backup_ver1.py 
 
import os 
import time 
 
# 1. The files and directories to be backed up are specified in a list. 
source = ['/home/swaroop/byte', '/home/swaroop/bin'] 
# If you are using Windows, use source = [r'C:Documents', r'D:Work'] or something like that 
 
# 2. The backup must be stored in a main backup directory 
target_dir = '/mnt/e/backup/' # Remember to change this to what you will be using 
 
# 3. The files are backed up into a zip file. 
# 4. The name of the zip archive is the current date and time 
target = target_dir + time.strftime('%Y%m%d%H%M%S') + '.zip' 
 
# 5. We use the zip command (in Unix/linux) to put the files in a zip archive 
zip_command = "zip -qr '%s' %s" % (target, ' '.join(source)) 
 
# Run the backup 
if os.system(zip_command) == 0: 
print 'Successful backup to', target 
else: 
print 'Backup FAILED'