#!/bin/bash
a=request
arr1=(request1 request2 request3)
arr2=(ip1 ip2 ip3)

user=user
password=123456
if [ $a = ${arr1[0]} ]; then
    b=${arr2[0]}
    echo $b
elif [ $a = ${arr1[1]} ]; then
    b=${arr2[1]}
    echo $b
elif [ $a = ${arr1[2]} ]; then
    b=${arr2[2]}
    echo $b
fi

id=$b
expect2=$(expect -c "
spawn ssh $user@$id
expect "continue connecting (yes/no)?"
send "yesr"
expect "password:"
send "$passwordr"
expect -exact ":~$"
send "sudo shutdown -r nowr"
expect "password:"
send "$passwordr"
expect -exact ":~$"
")
echo "$expect2"