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python的telnet客户端交互


代码实例:

import telnetlib

ftp_serv_addr = '10.0.2.47'

ftp_usrname = 'godu1'

ftp_password = 'godu1'

tn = telnetlib.Telnet(ftp_serv_addr)

tn.read_until('ogin: ')

tn.write(ftp_usrname+'\n')

tn.read_until('assword: ')

tn.write(ftp_password+'\n')

tn.read_until('$ ')

aa = tn.write('ps -ef|grep CMD\n')

print(aa)

print('=====')

bb = tn.read_until('$ ')

print(bb)

运行结果:

None

=====

ps -ef|grep CMD

UID PID PPID C STIME TTY TIME CMD

godu1 4973 4945 0 16:00 pts/2 00:00:00 grep CMD

[godu1@goduserver ~]$

上面的例子首先说明了telnet客户端与服务端的交互都是用write方法发命令,用read_until方法接收返回结果。可以看到登录过程也是如此(只是返回结果的期望不同),write方法不返回结果,read_until方法返回所有接收到的字符串,包括命令提示符。



Published

Jan 6, 2011

Last Updated

Jan 6, 2011

Category

Tech

Tags

  • 交互 1
  • Python 136
  • read_until 1
  • telnet 10
  • telnetlib 1
  • write 1

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