public class throwAway
    {
        public static int GetItemQuantity(string itemName)
        {
            var execute =
                "local itemCount = 0; " +
                "for b=0,4 do " +
                    "if GetBagName(b) then " +
                        "for s=1, GetContainerNumSlots(b) do " +
                            "local itemLink = GetContainerItemLink(b, s) " +
                            "if itemLink then " +
                                "local _, stackCount = GetContainerItemInfo(b, s)\t " +
                                "if string.find(itemLink, \"" + itemName + "\") then " +
                                    "itemCount = itemCount + stackCount; " +
                                "end " +
                            "end " +
                        "end " +
                    "end " +
                "end; " +
                "return itemCount; ";
            return Lua.LuaDoString<int>(execute);
        }

        /// <summary>
        /// Used to delete all items by name.
        /// </summary>
        /// <param name="itemName">The item to delete.</param>
        /// <param name="leaveAmount">The amount of items which remain in the bag.</param>
        /// <remarks>Bug at links with "-"</remarks>
        public static void DeleteItems(string itemName, int leaveAmount)
        {
            var itemQuantity = GetItemQuantity(itemName) - leaveAmount;
            if(string.IsNullOrWhiteSpace(itemName) || itemQuantity <= 0)
                return;
            var execute =
                "local itemCount = " + itemQuantity + "; " +
                "local deleted = 0; " +
                "for b=0,4 do " +
                    "if GetBagName(b) then " +
                        "for s=1, GetContainerNumSlots(b) do " +
                            "local itemLink = GetContainerItemLink(b, s) " +
                            "if itemLink then " +
                                "local _, stackCount = GetContainerItemInfo(b, s)\t " +
                                "local leftItems = itemCount - deleted; " +
                                "if string.find(itemLink, \"" + itemName + "\") and leftItems > 0 then " +
                                    "if stackCount <= 1 then " +
                                        "PickupContainerItem(b, s); " +
                                        "DeleteCursorItem(); " +
                                        "deleted = deleted + 1; " +
                                    "else " +
                                        "if (leftItems > stackCount) then " +
                                            "SplitContainerItem(b, s, stackCount); " +
                                            "DeleteCursorItem(); " +
                                            "deleted = deleted + stackCount; " +
                                        "else " +
                                            "SplitContainerItem(b, s, leftItems); " +
                                            "DeleteCursorItem(); " +
                                            "deleted = deleted + leftItems; " +
                                        "end " +
                                    "end " +
                                "end " +
                            "end " +
                        "end " +
                    "end " +
                "end; ";
            Lua.LuaDoString(execute);
        }
    }

throwAway.DeleteItems("Soul Shard", 0);