python--做远程scp的进度条

用python写的远程做scp拷贝，并判断拷贝状态，自制进度条在屏幕输出

说明：

其中threading为多线程函数，multiprocessing为多进程函数（本处使用进程）

scp通过pexpect与本机进行交互输入密码（如果配置无密登陆此处可以省略）

通过paramiko获取远程服务器的du -s的值

 

import sys

import os

import threading,multiprocessing

import pexpect

import time,paramiko

def scopy():

ld=pexpect.spawn('scp -r /data/rhel-server-6.3-x86_64-dvd.iso [email protected]:/back/')

ld.expect('password:',timeout=None)

ld.sendline('zhengbin110')

        ld.expect(pexpect.EOF,timeout=None)

#ld.read()

def view_bar(num=1, sum=100, bar_word=":"):

   rate = float(num) / float(sum)

   rate_num = int(rate * 100)

   print '\r%d%% :' %(rate_num),

   for i in range(int(num)/10):

       os.write(1, bar_word)

   sys.stdout.flush()

 

def huoqu():

 host='192.168.2.3'

 user='root'

 passwd='zhengbin110'

 port=22

 try:

  ssh=paramiko.SSHClient()

  ssh.load_system_host_keys()

  ssh.connect(host,port,user,passwd)

 #stdin,stdout,stderr=ssh.exec_command('ls /home')

  stdin,stdout,stderr=ssh.exec_command('du -s /back')

  abc=stdout.readlines()[0].split()[0]

  return abc

 except Exception,e:

  return 0

if __name__=='__main__':

global count,mutex

count=1

t=multiprocessing.Process(target=scopy,args=())

t.start()

while (1):

time.sleep(1)

x=huoqu()

  bili=float(x)/float(os.popen('du -s /data/rhel-server-6.3-x86_64-dvd.iso').readlines()[0].split()[0])*100

view_bar(bili,100,bar_word="#")

if int(bili) == 100:

break

print "COPY IS FINISH!!!!"

t.join()