expect 交互 模拟ssh 登陆

模拟ssh登录

#!/bin/bash
Ip='192.168.1.6'            # 循环就行
RemoteUser='user'           # 普通用户
RemotePasswd='userpasswd'   # 普通用户的密码
RemoteRootPasswd='rootpasswd'
/usr/bin/expect -c "
set timeout -1
spawn ssh -t -p $Port -o StrictHostKeyChecking=no $RemoteUser@$Ip
expect {
    password {
        send_user RemotePasswd
        send ${RemotePasswd}
;
        expect {
            "does not exist" {
send_user "root user does not exist
"
exit 10
            }
            password {
send_user "user passwd error
"
exit 5
            }
            Last {
send "su - batch
"
expect {
    Password {
        send_user RemoteRootPasswd
        send ${RemoteRootPasswd}
;
        expect {
            "]#" {
send "sh /tmp/update.sh update
 "
expect {
    "]#" {
        send_user ${Ip}_Update_Done

    }
    eof
}
            }
        }
    }
}
            }
        }
    }
    "No route to host" {
        send_user "host not found
"
        exit 4
    }
    "Invalid argument" {
        send_user "incorrect parameter
"
        exit 8
    }
    "Connection refused" {
        send_user "invalid port parameters
"
        exit 9
    }
    "does not exist" {
        send_user "root user does not exist"
        exit 10
    }
    timeout {
        send_user "connection timeout 
"
        exit 3
    }
    eof
}
"
state=`echo $?`