这个其实是网络工程师的工作，有以下两种方法：
一、用ssh备份Cisco设备的脚本 需要事先在/root/.ssh/config配置好直接登录，并且在Cisco设备里设置好权限级别，可以执行show run
1#!/bin/sh
2sshcmd="ssh -o LogLevel=quiet"
3$sshcmd $1 "show run" > /root/backup/$1-$(date '+%Y%m%d').txt
二、备份Cisco设备的Python脚本，这个可控性更高： 首选需要在/export/servers/python363装好python, pip install netmiko 其次，在路由器上可以配置en的密码
1#!/export/servers/python363/bin/python3.6
2
3from netmiko import Netmiko
4import time
5
6tw_bgp = {
7 "device_type": "cisco_ios",
8 "host": "tw-bgp",
9 "ip": "192.168.1.10",
10 "username": "noc",
11 "use_keys": True,
12 "secret" : "xxxxxxxx",
13 "key_file": "/root/.ssh/id_jump_rsa_new",
14}
15
16tw_r1_e1 = {
17 "device_type": "cisco_ios",
18 "host": "tw-r1-e1",
19 "ip": "192.168.1.11",
20 "username": "noc",
21 "use_keys": True,
22 "key_file": "/root/.ssh/id_jump_rsa_new",
23}
24
25tw_r1_e2 = {
26 "device_type": "cisco_ios",
27 "host": "tw-r1-e2",
28 "ip": "192.168.1.12",
29 "username": "noc",
30 "use_keys": True,
31 "key_file": "/root/.ssh/id_jump_rsa_new",
32}
33
34tw_r2_e1 = {
35 "device_type": "cisco_ios",
36 "host": "tw-r2-e1",
37 "ip": "192.168.1.13",
38 "username": "noc",
39 "use_keys": True,
40 "key_file": "/root/.ssh/id_jump_rsa_new",
41}
42
43tw_r2_e2 = {
44 "device_type": "cisco_ios",
45 "host": "tw-r2-e2",
46 "ip": "192.168.1.14",
47 "username": "noc",
48 "use_keys": True,
49 "key_file": "/root/.ssh/id_jump_rsa_new",
50}
51
52devices=[tw_bgp, tw_r1_e1, tw_r1_e2, tw_r2_e1, tw_r2_e2]
53
54for dev in devices:
55 name = dev["ip"]
56 connection = Netmiko(**dev)
57 connection.enable()
58 out = connection.send_command("show running-config")
59 calender = time.strftime("%Y%m%d")
60 file_name = '{}-{}.txt'.format(dev["host"],calender)
61 file = open(file_name ,"w")
62 file.write(out)
63 file.close()
64 connection.disconnect()
65 print("BACKUP for %s done" %dev["host"])
