How to normalize the output of a dialog box that is used in a bash script?

Question

linux

Hello. I am writing an installation script, in general, it even works out :))
I decided to use "dialog" to configure the installation and ask questions to the user.
But it is displayed with some kind of terrible hieroglyphs. How exactly, on the screen.
Can this be fixed?
upd: Of
course, I will show the code )))
Understand and forgive me, I've been studying bash for the second hour with foam from the mouth, I'm too fired up :D

#!/bin/bash
DIALOG=${DIALOG=dialog}

$DIALOG --title " заголовок " --clear \
        --yesno "крякозябры" 10 40

case $? in
    0)
        echo "Выбрано 'Да'.";;
    1)
        echo "Выбрано 'Нет'.";;
    255)
        echo "Нажата клавиша ESC.";;
esac

#!/bin/bash
DIALOG=${DIALOG=dialog}
tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/test$$
trap "rm -f $tempfile" 0 1 2 5 15

$DIALOG --title " Окно ввода данных " --clear \
        --inputbox "А когда пилю окно ввода данных, вообще какой-то ужас получается:" 16 51 2> $tempfile

retval=$?

case $retval in
  0)
    echo "Вы ввели `cat $tempfile`"
    ;;
  1)
    echo "Отказ от ввода.";;
  255)
    if test -s $tempfile ; then
      cat $tempfile
    else
      echo "Нажата клавиша ESC."
    fi
    ;;
esac
clear

Answer 1

Most likely you are looking at the menu through some crooked terminal, perhaps putty. Add a parameter to the dialog call --ascii-lines- it will be better