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I have a collection of pgn files sorted and named according to the extended Scid openings classification. In total almost 6000 files.

What I want to do now is to extract a certain number of games from each file into a new file so that I get a collection of a certain number of games of each opening. So far I did not find a tool what can do that automatically. I can do that manually but I'd like to finish before Christmas 2011. If there is nothing around (what at best even runs in linux) I can write something myself but why reinvent the wheel?

Any hints?

tia

vp

I don't know about a generic tool but if it is a one off-job you may consider writing a small Python script. Since the parsing of the pgn files does not involve chess knowledge (the information is contained in the name) this should be quite trivial.

This is very simple for a shell+awk script. This takes the first 10 games of every PGN file in the current directory (*.pgn) and puts them in newfile.pgn.

Code: Select all

for file in *.pgn
do
   awk 'BEGIN { games = 0; state = 0; }
      /^[[]/ { state = 1; }
      /^[^[]/ { state = 2; }
      /^$/ { if (state == 2) { state = 0; games++; } if (games>=10) exit; }
      //' < $file
done > newfile.pgn

Zach Wegner wrote:This is very simple for a shell+awk script....

Thank you very much! Meanwhile I found out it could be done with awk. But finding it out and writing it down are two different things .

Volker