python自动备份

#!/usr/bin/python# Filename: backup_ver4.pyimport osimport 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 directorytarget_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 current day is the name of the subdirectory in the main directorytoday = target_dir + time.strftime('%Y%m%d')# The current time is the name of the zip archivenow = time.strftime('%H%M%S')# Take a comment from the user to create the name of the zip filecomment = raw_input('Enter a comment --> ')if len(comment) == 0: # check if a comment was entered    target = today + os.sep + now + '.zip'else:    target = today + os.sep + now + '_' + \        comment.replace(' ', '_') + '.zip'    # Notice the backslash!# Create the subdirectory if it isn't already thereif not os.path.exists(today):    os.mkdir(today) # make directory    print 'Successfully created directory', today# 5. We use the zip command (in Unix/Linux) to put the files in a zip archivezip_command = "zip -qr '%s' %s" % (target, ' '.join(source))# Run the backupif os.system(zip_command) == 0:    print 'Successful backup to', targetelse:    print 'Backup FAILED'