<div id="a_taglari">
	<a class="btn btn-outline dark" data-id="1" data-toggle="modal" href="#responsive">Düzenle</a>
	<a class="btn btn-outline dark" data-id="2" data-toggle="modal" href="#responsive">Düzenle</a>
	<a class="btn btn-outline dark" data-id="3" data-toggle="modal" href="#responsive">Düzenle</a>
	<a class="btn btn-outline dark" data-id="4" data-toggle="modal" href="#responsive">Düzenle</a>
</div>

<input type="text" name="duz" value="" id="yeni">

<script type="text/javascript">
$("#a_taglari a").click(function(e){
	e.preventDefault();
	$("input#yeni").val($(this).data("id"));
});
</script>