[英]Python - Netmiko read from 2 columns
我有以下代碼讀取帶有主機名列表的 CSV,並運行 2 個命令。
我需要更改它,以便它收到的 CSV 文件有 2 列,一列包含主機名,另一列包含要插入該路由器的相應命令。
主機名 | 命令 |
---|---|
CPE_1111 | sh ip 國際br |
CPE_2222 | sh運行 |
ETC | (...) |
(...)
nodenum=1
f=open('routers.csv', 'r') #File with Hostnames
c=f.read()
file_as_list = c.splitlines()
with open('Output.txt','w') as f: #File with output
logf = open("error.csv", "a") #Logfile
loga = csv.writer(logf)
loga.writerow(["Hostname"])
for i in file_as_list :
print ("Node", nodenum, "...Checking IP Address...", i)
try:
Connection = netmiko.ConnectHandler(ip=i, device_type="cisco_ios" , username=raw_input("Enter your Username:"), password=getpass.getpass(), verbose=False)
except:
try:
print("Cannot connect via SSH. Trying Telnet")
Connection = netmiko.ConnectHandler(ip=i, device_type="cisco_ios_telnet" , username=raw_input("Enter your Username:"), password=getpass.getpass(), verbose=False)
except:
print("SSH and Telnet Failed")
print("")
now = str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
loga.writerow([i])
nodenum = nodenum+1
continue
hostname = (Connection.send_command("show run | include hostname"))
cellular = (Connection.send_command("sh ip int brief"))
Connection.disconnect
(...)
您的答案取決於如何讀取 csv。 您可以使用csv.DictReader()
讀取每一行並將其轉換為字典。
import csv
with open(file="routers.csv", mode="rt") as f:
next(f)
lst = csv.DictReader(f=f, fieldnames=["ip", "cmd"])
ips_cmds = list(lst)
for ip_cmd in ips_cmds:
print("Hostname:", ip_cmd["ip"])
print("Command:", ip_cmd["cmd"], end="\n\n")
# Hostname: CPE_1111
# Command: show ip interface brief
# Hostname: CPE_2222
# Command: show running-config
然后在連接到每個路由器的for loop
中,您可以 select 從fieldnames
中指定的鍵中獲取所需的值。
conn = ConnectHandler(
device_type="cisco_ios",
ip=ip_cmd["ip"],
username=input("Username: "),
password=getpass(prompt="Password: "),
secret=getpass(prompt="Enable Secret: "),
fast_cli=False,
)
hostname = conn.send_command(command_string=ip_cmd["cmd"])
不要忘記為要執行的disconnect()
function 添加括號。
conn.disconnect()
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.