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 root@192.168.2.3:/back/')
ld.expect('pass
Word:',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.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
return 0
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()
0