login.exp

#!/usr/bin/expect

trap {
  set XZ [stty rows]
  set YZ [stty columns]
  stty rows $XZ columns $YZ < $spawn_out(slave, name)
} WINCH
set timeout 2
set HOST [lindex $argv 0]
set USER <Your Google Authenticator username>
set KEY <Your Google Authenticator key>

spawn ssh -t $USER@<JumpServer name> ssh $HOST

expect "Verification code: " {
  set CODE [exec oathtool --totp -b -d 6 $KEY]
  send "$CODE\r"
}
expect "<Username>@<Server name>" {
  send "cd $USER; exec /bin/bash --rcfile .bashrc\r"
}
interact