r>&nbsp;&nbsp;&nbsp;
                        <span class="more" data-toggle="popover" data-placement="bottom" data-content="a csvkit command for joining csvs">csvjoin</span> <span class="more" data-toggle="popover" data-placement="bottom" data-content="the -c option speficies which columns to join - this joins on the 3rd column in the first csv = the 4th column in the second csv">-c "3,4"</span> <span class="more" data-toggle="popover" data-placement="bottom" data-content="the first csv to be joined">$<</sp