title: Does Julia have an equivalent to R's list.files(recursive = TRUE)?
body: <p>I've written the folloeing function but it is ~50% slower than R's list.files(x, recursive = TRUE). Maybe there is also a way to make it faster.</p>
  <pre><code>function list_files(x)
      v = String[]
      for (root, dirs, files) in walkdir(x)
          for file in files 
              file = joinpath(root, file)
              push!(v, file)
          end
      end
      v
  end
  </code></pre>