title: Unzip a bunch of zips into their own directories
body: <p>I have a bunch of zip files I want to unzip in Linux into their own directory. For example:</p>
  
  <p>a1.zip
  a2.zip
  b1.zip
  b2.zip</p>
  
  <p>would be unzipped into:</p>
  
  <p>a1
  a2
  b1
  b2</p>
  
  <p>respectively. Is there any easy way to do this?</p>