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#!/bin/bash
ITEM_DB_DIR=""
SHOP_LIST="shoplist.txt"
SORT_MODE="2"
# 0 = no sort
# 1 = sort by id
# 2 = sort by item name
if [ ! -e "$ITEM_DB_DIR" ]; then
echo "warning the directory \""$ITEM_DB_DIR"\" does not exist ..."
echo "... exiting!"
exit 1
fi
if [ -e "$SHOP_LIST" ]; then
echo "warning the file "$SHOP_LIST" allready exists ..."
echo "... enter y/Y to overwrite it : "
read KEY
if [ ! $KEY = "y" ] && [ ! $KEY = "Y" ]; then
echo "... exiting!"
exit 0
fi
fi
case $SORT_MODE in
0)
cat "$ITEM_DB_DIR"/item_db* | grep -o -E "^[1-9][0-9]*[,][ ]+[a-zA-Z]*[,]" | sed -r -e 's/[,][ ]*/ /g' -e 's/[ ]*$//g' -e 's/ / 0 0 0 0 /g' > "$SHOP_LIST"
;;
1)
cat "$ITEM_DB_DIR"/item_db* | grep -o -E "^[1-9][0-9]*[,][ ]+[a-zA-Z]*[,]" | sed -r -e 's/[,][ ]*/ /g' -e 's/[ ]*$//g' -e 's/ / 0 0 0 0 /g' | sort -t " " -k 1 -g > "$SHOP_LIST"
;;
2)
cat "$ITEM_DB_DIR"/item_db* | grep -o -E "^[1-9][0-9]*[,][ ]+[a-zA-Z]*[,]" | sed -r -e 's/[,][ ]*/ /g' -e 's/[ ]*$//g' -e 's/ / 0 0 0 0 /g' | sort -t " " -k 2 > "$SHOP_LIST"
;;
*)
echo "wrong value for variable SORT_MODE!"
exit 1
esac
exit 0
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