linux通过shell脚本实现telnet交互式自动化

Posted 2022-07-24 wx5c41c128ce3e9

首先需要有expect:

可以通过以下命令查看是否安装，如果未安装直接 yum install expect，如果不行请自行百度安装。

[root@localhost home]# whereis expect
expect: /usr/bin/expect /usr/share/man/man1/expect.1.gz

[root@localhost home]# expect

编写脚本如下：

#!/bin/bash
passwd="123456"
/usr/bin/expect <<-EOF
set timeout 50
spawn ssh  root@10.10.22.38
expect 
"*yes/*"  send "yes\\r"; exp_continue 
"*password:"  send "$passwd\\r" 

expect "*]*"
send "df -h\\r"
EOF

解释一下：

/usr/bin/expect <<-EOF  #开始用expcet执行标志

EOF  #结束标志

expect  #是expect要实现交互的命令集

[root@localhost home]# ssh root@10.10.22.38

"*yes/*"

"*password:"  send "$passwd\\r"  #如上如果遇到返回值 *代表无限字符，后面是password:则执行 send发送字符串 \\r回车

expect "*]*"    #等待出现]执行下一条命令
send "df -h\\r"  #执行命令并回车。

#!/bin/bash
passwd="admin"
/usr/bin/expect <<-EOF
set timeout 50
spawn telnet 0
expect  
"Login*"   send "admin\\r"

expect 
"*assword:"  send "$passwd\\r" 
 
expect  
"*admin>" send "security enable protocol-detect\\r"

expect  
"*admin>" send "security set port-abnormal detect 2\\r"

expect  
"*admin>" send "security show protocol-detect status\\r"

expect  
"*admin>" send "security show port-abnormal-detect level\\r"

expect  
"*admin>" send "exit\\r"


EOF