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While I understand how to create menus, no guide I've found teaches how to actually link them to commands

I was hoping to have something like:

dialog--clear --title "n00b's spellbook" \
        --menu "Choose thine spell:" 20 51 4 \
        1 "Name of program"  "blah" \
        2 "Name of other program" "blah" \

then somehow 1 runs ./program1 and 2 runs ./program2

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Sorry. Missed the point. Did not catch it was the dialog package – @jasonwryan fix of the markup made it more clear. – So this is a complete re-write.

As noted by the man pages; I recommend you download the source and look in the examples folder.

If you're in apt-get world simply say:

apt-get source dialog
cd dialog*/samples

A basic example from the yes/no sample (with some modifications):

: ${DIALOG=dialog}

: ${DIALOG_YES=0}
: ${DIALOG_NO=1}
: ${DIALOG_ESC=255}


DIALOG_ERROR=254
export DIALOG_ERROR

$DIALOG --title "YES/NO BOX" --clear "$@" \
        --yesno "A simple Yes/No dialog." 15 61

retval=$?

case $retval in
  $DIALOG_YES)
    echo "YES";;
  $DIALOG_NO)
    echo "NO";;
  $DIALOG_ERROR)
    echo "ERROR!";;
  $DIALOG_ESC)
    echo "ESC pressed.";;
esac
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