title: bash: using unzip to change filename within archive
body: <p>Given the following archive file20150101.zip, which contains only one file, file1115.txt, how would I go about renaming the file inside to match the name of the archive (file1115.txt to file20150101.txt)?</p>
  
  <p>I've tried, unsuccessfully, to use unzip -u (most likely due to a misunderstanding of how it should work).</p>