title: mkdir -p over SSH bash
body: <p>I have a small test script as follows;</p>
  
  <pre><code>TESTDIR="$HOSTNAME"
  ssh user@server.com "\$TESTDIR"
  mkdir -p ~/$TESTDIR/test
  exit
  </code></pre>
  
  <p>the output with <code>bash -x</code> is;</p>
  
  <pre><code>+ TESTDIR=ndx
  + ssh user@server.com '$TESTDIR'
  + mkdir -p /home/user/ndx/test
  + exit
  </code></pre>
  
  <p>Yet on the remote server, no directory exists?</p>