title: Rename written CSV file Spark
body: <p>I'm running spark 2.1 and I want to write a csv with results into Amazon S3.
  After repartitioning the csv file has kind of a long kryptic name and I want to change that into a specific filename.</p>
  
  <p>I'm using the databricks lib for writing into S3.</p>
  
  <pre><code>dataframe
      .repartition(1)
      .write
      .format("com.databricks.spark.csv")
      .option("header", "true")
      .save("folder/dataframe/")
  </code></pre>
  
  <p>Is there a way to rename the file afterwards or even save it directly with the correct name? I've already looked for solutions and havent found much.</p>
  
  <p>Thanks </p>