chessdata.sh

# delete directory if it exists
rm -rf ~/Desktop/chessdata

# make new directory
mkdir ~/Desktop/chessdata

#change into directory
cd ~/Desktop/chessdata

# download zip files
wget http://ratings.fide.com/download/standard_{jan,feb,mar,apr,may,jun,jul,aug,sep,oct,nov,dec}{01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,17}frl.zip
wget http://ratings.fide.com/download/{jan,feb,mar,apr,may,jun,jul,aug,sep,oct,nov,dec}{01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,17}frl.zip

# unzip zip files (creates a bunch of txt files)
ls *.zip | xargs -I {} unzip {}

# delete zip files
rm -rf *.zip

# combine text files
cat *.txt > all.txt