备份文件

学习OS模块：

#!/usr/bin/python
import os
import time
import socket

def getsource():
    print "[Info]-Please input the absolute path of file or directory which you want to back up."
    spath = raw_input(‘>‘)
    if not os.path.exists(spath):
        print "[Error]-%s does not exsist.Try again."%spath
        exit()
    return spath

def gettarget():
    print "[Info]-Please input the absolute path of target directory."
    tpath = raw_input(‘>‘)
    if not os.path.exists(tpath):
        os.makedirs(tpath)
    return tpath

def backup(spath,tpath):
    hostname = socket.gethostname()
    filename = ‘_‘.join([hostname,time.strftime(‘%m-%d-%Y‘),‘logs.tar.gz‘])
    filepath = tpath + os.sep + filename
    clist = [‘tar -zcvf‘, filepath, spath]
    command = ‘ ‘.join(clist)
    os.system(command)
    print "Backup successfully!"

if __name__ == ‘__main__‘:
    source = getsource()
    target = gettarget()
    backup(source,target)