<label>  
  <input type="file" name="" id="uploaded-file" onchange="getFileName();">                                  
</label>
<p id="file-name"></p>
function getFileName() {
  var file = document.getElementById('uploaded-file').value;
  file = file.replace(/\\/g, '/').split('/').pop();
  document.getElementById('file-name').innerHTML = 'Имя файла: ' + file;
}
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