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# twic_script
A bash script to maintain an updated SCID database of chess games downloaded from The Week In Chess (TWIC)
==============================
This simple bash script helps maintaining an updated database of
chess games for SCID, based on the famous "The Week In Chess" game
collection made available at
http://www.theweekinchess.com/
Games are distributed as zipped png files, which are uploaded weekly
on http://www.theweekinchess.com/zips/ (Should that URL change at some
point in the future, you will just need to update the ADDR variable
below)
*SYNOPSIS*
./twic_script.sh --help
./twic_script.sh [<start_issue> [<end_issue> [<pgnfile>]]]
When called with "--help" as first argument, the script outputs
a *minimal* help.
Otherwise, if called with a start_issue (an integer, default to the
first issue to be downloaded, as specified into ${IDFILE}, or to
the first known online issue of TWIC, number 210, if ${IDFILE} does
not exist), it will start downloading the TWIC issues from start_issue
up to the latest (or up to end_issue, if provided). The zips are stored
into ${ZIPDIR} (default to "./zips"), while the png database is
maintained into ${PNGFILE} (default to ${DBDIR}/twic.png), or into the
file provided by the user as third argument.
The new pgn files are concatenated at the end of ${PNGFILE}, and then the
SCID database is rebuilt (this can take a while...).
The script maintains a record of the last downloaded issue, into the
file ${IDFILE} (default to ${ZIPDIR}/.last_id), so that it is sufficient
to call it regularly (e.g., as a user cron job) with no arguments in order
to have an updated DB of chess games.
*DEPENDENCIES*
twic_script.sh depends on:
- wget (to download the zip files)
- unzip (well, what do you think we are using it for?)
- pgnscid (a program provided by scid to convert a pgn file into a SCID
.si4 game DB)
**** IMPORTANT NOTE ****
BEWARE!!! IF YOU REMOVE ${PNGFILE}, THE CORRESPONDING SCID DB FILE WILL
BE OVERWRITTEN BY THE FIRST RUN OF THIS SCRIPT!!!
**** DISCLAIMER ****
THIS SCRIPT USES AND AGGREGATES ONLY PUBLICLY AVAILABLE PGN
FILES. THIS PROJECT IS NOT RELATED IN ANY WAY TO THE WEBSITE "TWIC -
THE WEEK IN CHESS", WHICH IS CREATED AND MAINTAINED BY Mark
Crowther. THE BEST WAY TO SUPPORT THIS PROJECT (WHICH DOES NOT NEED
THAT MUCH EFFORT INDEED) IS BY SUPPORTING "THE WEEK IN CHESS"
(http://www.theweekinchess.com) AND ITS CREATOR Mark Crowther, WHO
HAS DONE A GREAT JOB PUTTING TOGETHER A SUPERB CHESS WEBZINE.
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