this one-liner has following benefits:

* restart if pressing ESC (while ! ... ; do true; done)

* store result in a variable not a file (whiptail ... 3>&1 1>&2 2>&3)

while ! choosen=$(whiptail --nocancel --noitem --radiolist "Please choose" \
10 19 3 1 1 2 0 3 0 3>&1 1>&2 2>&3); do true; done

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