if [ -z $EDITOR ] ; then
        echo "Your EDITOR environment is not set"
        echo "I will assume you want to use vi..OK"
        echo -n "Do you wish to change it now? [y..n] :"
        read ANS
if [ "$ANS" = "y" ] || [ "$ANS" = "Y" ]; then
        echo "enter your editor type :"
        read EDITOR
if [ -z $EDITOR ] || [ "$ANS" = "Y" ]; then
        echo "enter your editor type :"
        read EDITOR
        if [ -z $EDITOR ] || [ "$EDITOR" = "" ]; then
        echo "No, editor entered, using vi as default"
        EDITOR=vi
        export EDITOR
fi
        EDITOR=$EDITOR
        export EDITOR
        echo "setting $EDITOR"
fi
else
        echo "Using vi as the default editor"
        EDITOR=vi
        export vi
fi
~                                                                   
~                                                                   
~