title: bash: comment a long pipeline
body: <p>I've found that it's quite powerful to create long pipelines in bash scripts, but the main drawback that I see is that there doesn't seem to be a way to insert comments.</p>
  
  <p>As an example, is there a good way to add comments to this script?</p>
  
  <pre><code>#find all my VNC sessions
  ls -t $HOME/.vnc/*.pid                  \
      | xargs -n1                         \
      | sed 's|\.pid$||; s|^.*\.vnc/||g'  \
      | xargs -P50 --replace vncconfig -display {} -get desktop \
      | grep "($USER)"                    \
      | awk '{print $1}'                  \
      | xargs -n1 xdpyinfo -display       \
      | egrep "^name|dimensions|depths"
  </code></pre>