詳解python連接telnet和ssh的兩種方式

#!/usr/bin/env python
# coding=utf-8
 
import time
import telnetlib
import logging
 
__author__ = 'Evan'
 
save_log_path = 'result.txt'
file_mode = 'a+'
format_info = '%(asctime)s - %(filename)s[line:%(lineno)d] - %(levelname)s: %(message)s'
 
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
 
# 添加記錄 記錄器功能
fh = logging.FileHandler(save_log_path, mode=file_mode)
fh.setLevel(logging.DEBUG)
fh.setFormatter(logging.Formatter(format_info))
logger.addHandler(fh)
# 增加顯示 記錄器功能
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
ch.setFormatter(logging.Formatter(format_info))
logger.addHandler(ch)
 
 
def telnet_handle(host='', port=''):
    handle = telnetlib.Telnet(host, port, timeout=10)
    handle.set_debuglevel(2)  # Display connect info (send command & received info)
    logger.debug('Connect host: {} port: {} successful'.format(host, port))
 
    try:
        #獲取登錄提示‘login：' 後輸入密碼。
        handle.read_until('login:', timeout=5)
 
        #發送命令 登錄，用戶名：admin 密碼：admin
        handle.write('admin\n')  #用戶名
        #如果有輸入密碼的提示符可以打開這一條，並修正確的密碼提示符
        #handle.read_until('輸入密碼提示符', timeout=5)
        time.sleep(1)
        handle.write('admin\n')  #密碼
        time.sleep(1)
        handle.write('en\n')  #執行指令
        time.sleep(1)
        handle.write('sys\n')  #執行指令
        time.sleep(1)
        handle.write('display running-config\n')  #執行指令
        time.sleep(1)
        handle.write('show stack\n')  #執行指令
        time.sleep(1)
 
        #讀取所有信息
        result = handle.read_very_eager()  
        logger.info('Received info: {}'.format(result))
    finally:
        handle.close()
 
if __name__ == '__main__':
    telnet_handle(host='192.168.10.1', port='23')

#!/usr/bin/env python
# coding=utf-8
 
import paramiko,sys,time
 
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
#連接SSH服務器
client.connect("192.168.10.1",22,"admin","admin")
#執行命令的方式一   連接linux發送固定指令
stdin,stdout,stderr = client.exec_command("whoami")
time.sleep(2)
print(stdout.read())
stdin,stdout,stderr = client.exec_command("cat /root/lzhi/c_call_python.txt")
print(stdout.read())
stdin,stdout,stderr = client.exec_command("ls")
print(stdout.read())
stdin,stdout,stderr = client.exec_command("ls -la")
print(stdout.read())
 
#執行命令的方式二  獲取命令行參數，並且刪除參數1.保留需要執行的命令
buf = sys.argv
del buf[0]
str1 = ' '.join(buf)
print(str1)
#執行命令行參數給出的命令
stdin,stdout,stderr = client.exec_command(str1)
#time.sleep(1)
print(stdout.read())