title: Using multiple layers of quotes in bash
body: <p>I'm trying to write a bash script, and I'm running into a quoting problem.</p>
  
  <p>The end result I'm after is for my script to call:</p>
  
  <pre><code>lwp-request -U -e -H "Range: bytes=20-30"
  </code></pre>
  
  <p>My script file looks like:</p>
  
  <pre><code>CLIENT=lwp-request
  REQ_HDRS=-U
  RSP_HDRS=-e
  RANGE="-H "Range: bytes=20-30""   # Obviously can't do nested quotes here
  ${CLIENT} ${REQ_HDRS} ${RSP_HDRS} ${RANGE}
  </code></pre>
  
  <p>I know I can't use nested-quotes.  But how can I accomplish this?</p>