function delete(){
    #Requires: $NOTE, $NOTEBOOK, $SECTION, $NAME
    # Given a valid $NOTE, delete removes $NOTE from sns.
     if [ -e "$NOTE" ]; then
        rm "$NOTE"
        printf "\n%s\n" "Deleted note: $NOTEBOOK/$SECTION/$NAME."
     else
        printf "\n%s\n" "ERROR: Note $NOTEBOOK/$SECTION/$NAME does not exist."
     fi
}