expect遠程自動登錄

expect遠程自動登錄

用法1、遠程自動登錄腳本，服務端須要安裝expect和openssh-clients

[root@localhost ~]# cat login.expect

#! /usr/bin/expect

set host "192.168.1.2"

set passwd "12345678"

spawn ssh root@$host

expect {

"yes/no" { send "yes\r"; exp_continue}

"assword:" { send "$passwd\r" }

}

interact

用法2、登錄後執行命令而後退出

[root@localhost ~]# cat 11.expect

#!/usr/bin/expect

set user "root"

set host "192.168.1.2"

set passwd "12345678"

spawn ssh $user@$host

expect {

"yes/no" { send "yes\r"; exp_continue}

"password:" { send "$passwd\r" }

}

expect "]*"

send "touch /tmp/12.txt\r"

expect "]*"

send "echo 1212 > /tmp/12.txt\r"

expect "]*"

send "exit\r"

用法3、expect傳遞參數

[root@localhost ~]# cat 11.expect

#!/usr/bin/expect

# 第一個參數爲用戶名

set user [lindex $argv 0]

# 第二個參數爲IP

set host [lindex $argv 1]

# 第三個參數爲密碼

set passwd [lindex $argv 2]

# 第四個參數爲執行的命令

set cm [lindex $argv 3]

# ssh遠程登錄

spawn ssh $user@$host

# expect模塊自動執行

expect {

"yes/no" { send "yes\r"}

"password:" { send "$passwd\r" }

}

expect "]*"

send "$cm\r"

expect "]*"

send "exit\r"

[root@localhost ~]## 運行方式，執行腳本的時候須要在後面指定4個參數，每一個參數之間用空格分開

[root@localhost ~]# ./11.expect root 192.168.1.2 12345678 "cat /etc/passwd > /tmp/111.txt"

用法4、同步文件，服務端和客戶端都要安裝rsync

[root@localhost ~]# cat 11.expect

#!/usr/bin/expect

set passwd "111111"

set file "/tmp/11.txt"

spawn rsync -av $file root@192.168.10.29:$file

expect {

"yes/no" { send "yes\r"}

"password:" { send "$passwd\r" }

}

expect eof

用法5、指定IP列表

[root@localhost ~]# cat 1.expect

#!/usr/bin/expect

set host [lindex $argv 0]

set passwd "111111"

spawn ssh root@$host

expect {

"yes/no" { send "yes\r"; exp_continue}

"assword:" { send "$passwd\r" }

}

interact

[root@localhost ~]# cat 1.sh

#!/bin/bash

for ip in `cat ip.txt`

do

./1.expect $ip

done

[root@localhost ~]# cat ip.txt

192.168.1.2

192.168.1.3

用法6、指定IP列表，文件列表

[root@localhost ~]# vi 1.expect

#!/usr/bin/expect

set host [lindex $argv 0]

set file [lindex $argv 1]

set passwd "111111"

spawn rsync -av $file root@$host:$file

expect {

"yes/no" { send "yes\r"}

"password:" { send "$passwd\r" }

}

expect eof

[root@localhost ~]# vi 1.sh

#!/bin/bash

for ip in `cat ip.txt`

do

for file in `cat file.txt`

do

./1.expect $ip $file

done

done

[root@localhost ~]# cat file.txt

/tmp/1.txt

/tmp/2.txt

[root@localhost ~]# cat ip.txt

192.168.1.2

192.168.1.3