sample bash list code

result=$( dialog ... )
for opt in $result
do
case $opt in
A1) : do whatever ;;
A2) : do whatever ;;
B1) : do whatever ;;
B2) : do whatever ;;
esac
done


#!/bin/bash

A1(){ false;}
A2(){ false;}
B1(){ false;}
B2(){ false;}

{
eval "$(
dialog --separate-output --output-fd 3 \
--checklist blah 0 0 0 \
A1 foo on \
A2 bar on \
B1 foo on \
B2 foo on \
3>&1 >&4 4>&- |
sed 's/$/(){ true;}/')"
} 4>&1

clear

if A1; then
        echo A1 was ticked
fi
if A2; then
        echo A2 was ticked
fi
if B1; then
        echo B1 was ticked
fi
if B2; then
        echo B2 was ticked
fi
exit 0