Python telnet programming code

In settings related to telnet, we usually access other languages for editing. Here we will mainly introduce how to use scripts to implement this operation. Including the implementation process of Python telnet. Let's take a look at the content of the article.

I. Shell implementation, file name: autotelnet. sh, the Code is as follows:

 
 

  
  
(sleep 1;echo "root";sleep 1;echo "123456";sleep 1;echo "en";sleep 1;echo "1qazse4";sleep 1;echo "conf t";sleep 1;echo "int fa0/1";sleep 1;echo "switchport mode multi";sleep 1;echo "end";sleep 1;echo "exit") | telnet 10.32.17.10 
 
 

Ii. Verify CT. The file name is autotelnet. exp. The Code is as follows:

 
 

  
  
#!/usr/bin/expect  
  
  
set timeout 100  
  
  
set TERM xterm  
  
  
set SERVER "10.32.17.10"  
  
  
set USER "root"  
  
  
set PASSWD "123456"  
  
  
spawn telnet  
  
  
expect "telnet> "  
  
  
send "open $SERVERr"  
  
  
expect "Username:"  
  
  
send "$USERr"  
  
  
expect "Password:"  
  
  
send "$PASSWDr"  
  
  
expect "longjiang-zero>"  
  
  
send "enr"  
  
  
expect "Password:"  
  
  
send "$PASSWDr"  
  
  
expect "longjiang-zero#"  
  
  
send "conf tr"  
  
  
expect "longjiang-zero(config)#"  
  
  
send "int fa0/1r"  
  
  
expect "longjiang-zero(config-if)#"  
  
  
send "switchport mode multir"  
  
  
expect "longjiang-zero(config-if)#"  
  
  
send "endr"  
  
  
expect "longjiang-zero#"  
  
  
send "exitr"  
  
  
interact 
 
 

Iii. Python telnet implementation. File Name: autotelnet. py. The Code is as follows:

 
 

  
  
#!/usr/bin/python  
  
  
import telnetlib  
  
  
host = ''10.32.17.10''  
  
  
user = ''root''  
  
  
password = ''123456''  
  
  
commands = [''en'',password,''conf t'',''int fa0/1'',''switchport mode multi'',''end'']  
  
  
tn = telnetlib.Telnet(host)  
  
  
tn.read_until("Username:")  
  
  
tn.write(user + "n")  
  
  
tn.read_until("Password:")  
  
  
tn.write(password + "n")  
  
  
for command in commands:  
  
  
tn.write(command+''n'')  
  
  
tn.write("exitn")  
  
  
print tn.read_all()  
  
  
print ''Finish!'' 
 
 

Now we have completed the Python telnet implementation process.