echo NAME=${NAME:=zztest}
CATDB=${NAME}.db
export CATDB 

case "$1" in
*.zip)
  unzip -p "$1" catobs.csv > ${NAME}.old.csv
  ;;
*.csv)
  cp "$1" ${NAME}.old.csv
  ;;
*)
  echo "$0 [catalogue.zip|catobs.csv]"
  exit 1
  ;;
esac

ruby dbize.rb ${NAME}.old.csv
export PREVDATE=`awk -F, '(NR==1){print $6; exit}' ${NAME}.old.csv`
rm -f ${NAME}.old.csv

export NOWDATE="`awk -F, '(NR==1){print $6; exit}' catobs.csv`"
ruby dbdif.rb catobs.csv > ${NAME}.diff.html