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# twic_script
A bash script to maintain an update 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!!!
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