You're replying to a comment by Anirudh.

Anirudh Permalink
February 01, 2016, 15:06

The default action is to print the pattern space, so the below can be also written as:

>> sed -e "/^{/ !b" wrk4.pgn -e "/Diagram\|%tqu/ b" -e d <<
   sed -e "/^{/ !b" wrk4.pgn -e "/Diagram\|%tqu/!d"

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