Lyndon Nerenberg (VE7TFX/VE6BBM):

  Oh come on Rob, you should know that for anyone over the age of 50,
  the moment you see 'dd' your brain automatically switches to JCL
  mode.

===

Rob doubtless got IBM out of his system back in the
late 1970s, when I think he was one of the authors
of a shell that brought the TSO experience to Unix.

Norman Wilson
Toronto ON