Python实现批量网络设备备份

import paramiko
import datetime 
import time
f=open('./hostnames.txt','r')  #准备主机文件，一台主机占一行
hostnames=f.readlines()

for hostname in hostnames:
    hostname=hostname.strip()
    ssh_client=paramiko.SSHClient()
    ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh_client.connect(hostname=hostname,username='python',password='123456')  #连接并登录网络设备，此处用户名密码根据自己情况
    print('Sucessfully conneted to ',hostname)

    cmd=ssh_client.invoke_shell()
    cmd.send('dis curr | include sysname\n')   #查看网络设备主机名
    time.sleep(2)

    
    result=cmd.recv(66666)  #设置接收字节的窗口大小
    result=result.decode('utf-8')
    items=result.splitlines()
    for item in items:
        item=item.strip()
        if item.startswith('sysname'):  #提取网络设备主机名
            device_name=item.split(' ')[-1]
    #print(device_name)
    now_time=datetime.datetime.now()
    now_time=now_time.strftime('%Y-%m-%d-%H:%M:%S')  #获取当前时间
    file_name=device_name+'-'+now_time+'-vrpcfg.zip' #拼接备份文件名（网络设备主机名+时间+后缀名）



   
    cmd.send('ftp 192.168.99.211\n')
    time.sleep(1)
    cmd.send('ftpuser\n')
    time.sleep(1)
    cmd.send('huawei123456\n')  
    time.sleep(1)
    cmd.send('put vrpcfg.zip '+file_name+'\n')  #登录FTP服务器，并将网络设备的文件传送到FTP服务器
    time.sleep(3)
  
    print('files have uploaded to ftp server,And the connetion will be closed')    
    
    result2=cmd.recv(66666)
    result2.decode('utf-8')
    print(result2,'\n')
    
    time.sleep(2)
    ssh_client.close()