ssh自动登录并且su的脚本

从一台Linux机器上用u1用户自动登录到服务器, 然后su成u2

- 需要安装expect

- 脚本如下：

#!/usr/bin/expect
#auto ssh login
set timeout 10
set sshhost [lindex $argv 0]
set u1 "user1"
set p1 "password1"
set u2 "user2"
set p2 "password2"
spawn ssh  -l$u1 -pPortNumber $sshhost

expect {
    "yes/no" {
        send "yesr"
        exp_continue 
    } "*assword:*"  {
        send "$p1r"
        exp_continue
    } "*ast login:*" {
        # 在s1上变成u2/p2用户：
        send "LANG=en_US.UTF-8r"
        expect "$*"
        send "su - $u2r"
        expect "*assword:*"
        send "$p2r"
        interact
        exit 0
    } timeout {
        send_user "connection to $sshhost timeout!n"
        exit 1
    } "*ncorrect*" {
        send_user "password incorrect!n"
        exit 2
    } "*ermission*" {  #for LINUX ssh
        send_user "password Error!n"
        exit 2
    } eof {
        exit 3
    }
}

- 调用：
./connnect.sh ipaddress