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  • 2
    +1 for the awk solution. Bonus for style. Very tight, clean and readable solution. Goes straight to my cheat sheet :) Commented Jan 3, 2013 at 9:01
  • 1
    the awk-solution is... wow Commented Jan 3, 2013 at 14:39
  • I had to add a print; before skip=1 for it to work properly in my machine (it was not printing the begin block). should this be edited in the answer? Commented Jun 12, 2015 at 23:35
  • 1
    @elias Indeed that was a bug, thanks. I also implemented another requirement that I'd missed: add the dynamic block at the end if it wasn't present. Commented Jun 13, 2015 at 0:07
  • @Gilles oh, I had missed that too. :) Commented Jun 13, 2015 at 0:17