How to make a selection and confirm input in a bash script?

Question

linux

When the script is executed, a dialog box appears.

How, in this case, to select an item and confirm it from the bash script, without my participation?

Answer 1

sudo DEBIAN_FRONTEND=noninteractive apt-get -y -o Dpkg::Options::='--force-confdef' -o Dpkg::Options::='--force-confnew' upgrade

--force-confdef- use the default version of the file. If it is not there, then it will ask a question and crash, so that this does not happen, added --force-confnew, which will install a new version of the config

Answer 2

1)
2) 3) 4)

./a.sh << EOF 
2
тут еще
еще
и еще
EOF