expect ssh登陆,发现密码错误后关闭连接

#!/bin/bash

target="192.168.1.100"
password="123456"

/bin/expect -c "
    set timeout 30
    spawn ssh $target
    expect {
        "*yes/no*" { send "yesr"; exp_continue }
        "*password*" { send "$passwordr" }
    }
    expect {
        "*password*" { exit 1 }
    }
"

if [ $? -eq 1 ]; then
    echo
    echo "ERROR PASSWORD"
fi